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351 straightforward calculators for business, trade work, personal finance and everyday decisions.
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The calculator library
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351 calculators · 60 calculator categories
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Commercial cleaning
8 toolsCommercial cleaning contract price
Price recurring labor travel supplies and overhead using observed productivity.
Open calculator →Cleaning production rate
Measure observed task productivity and required person-hours.
Open calculator →Cleaning staffing workload
Turn specified task frequencies and observed times into staffing.
Open calculator →In house vs outsourced cleaning cost
Compare an entered internal cleaning program with a supplied outsourcing quote for equal service scope.
Open calculator →Restroom consumables operating budget
Budget restroom supplies from observed consumption per occupied day and purchased unit prices.
Open calculator →Floor scrubber vs manual cleaning
Compare observed cleaning method time and equipment cost.
Open calculator →Janitorial contract escalation
Calculate a revised price from an explicit labor and cost change basket.
Open calculator →Cleaning quality rework cost
Measure actual repeat-work cost and margin erosion per contract.
Open calculator →Commercial equipment
12 toolsEquipment ownership cost per hour
Recover economic ownership and running cost at realistic utilization.
Open calculator →Equipment rent vs buy
Find utilization where renting and ownership have equal modeled cost.
Open calculator →Equipment total cost of ownership
Compare full cash costs over a chosen ownership horizon.
Open calculator →Equipment repair vs replace
Compare discounted future costs of two supplied maintenance alternatives.
Open calculator →Equipment downtime cost
Put a supplied lost-contribution value on breakdown and recovery time.
Open calculator →Equipment mobilization cost
Budget transport movements and loading from supplied times and costs, without selecting equipment or interpreting permits.
Open calculator →Equipment utilization break even
Find annual billable hours needed for an equipment business to cover cost.
Open calculator →Equipment minimum rental rate
Find a rental charge that covers owner costs downtime and target margin.
Open calculator →Equipment lease vs cash purchase
Compare quoted lease cash flows against cash purchase and resale.
Open calculator →Preventive maintenance return
Test whether an assumed reduction in breakdowns pays for a program.
Open calculator →Equipment loan payment
Build a fixed-rate equipment loan amortization schedule.
Open calculator →Equipment replacement reserve
Find deposits to fund a specified future replacement cash gap.
Open calculator →HVAC and refrigeration
8 toolsRefrigeration operating energy cost
Calculate measured refrigeration electricity cost across operating schedules.
Open calculator →HVAC service agreement profitability
Price expected visits labor travel and supplied incident scenarios.
Open calculator →Refrigeration defrost energy cost
Price scheduled defrost heater operation independently of cooling load.
Open calculator →Cooling equipment efficiency payback
Compare entered annual kWh for two quoted cooling options.
Open calculator →Service callback and warranty visit cost
Budget the recorded cost of nonbillable return visits using supplied labor, travel and parts expense.
Open calculator →HVAC maintenance visit capacity
Find annual visits possible from technician calendar and observed durations.
Open calculator →HVAC filter replacement economics
Budget supplied filter-change intervals, filter purchases and change labor; any measured energy comparison is separate.
Open calculator →Refrigeration door heater energy cost
Price measured anti-sweat heater duty cycle and an alternate schedule.
Open calculator →Fleet
8 toolsFleet cost per mile
Add your vehicle operating, ownership and driver costs, then divide by productive miles for the same period.
Open calculator →Fleet idling fuel cost
Price observed idle hours and measured fuel burn.
Open calculator →Fleet empty miles profitability
Expose unpaid mileage effect on required billable-mile rate.
Open calculator →Fleet electric vs fuel vehicle economics
Compare supplied vehicle purchase energy upkeep and resale scenarios.
Open calculator →Fleet maintenance reserve per mile
Fund known future maintenance events across remaining mileage.
Open calculator →Fleet tire cost per mile
Compare supplied installed tire life disposal and retread scenarios.
Open calculator →Fleet oil change cost
Budget oil and filter service for a fleet using your recorded service count or your supplied maintenance intervals.
Open calculator →Material quantity within supplied payload
Estimate a weight-limited material quantity and number of loads using a supplied remaining payload basis and known item weight or bulk density.
Open calculator →Finance
40 toolsBusiness finance
Service business hourly rate
Recover annual overhead and owner compensation across billable hours.
Open calculator →Job profit and margin
Reconcile a completed job using actual revenue and actual costs.
Open calculator →Employee loaded hourly cost
Turn user-entered annual compensation and burdens into productive-hour cost.
Open calculator →Thirteen week cash forecast
Find weekly cash shortages from user-entered receipts and payments.
Open calculator →Markup vs margin
Convert cost and desired gross margin into price without confusing markup.
Open calculator →Break even sales
Find units and revenue needed to cover fixed costs.
Open calculator →Price increase profit impact
Compare profit before and after a price change with explicit volume loss.
Open calculator →Billable utilization
Measure billable capacity and revenue at a supplied billing rate.
Open calculator →Cash runway
Estimate months until cash reaches a chosen reserve under constant burn.
Open calculator →Discount profit recovery
Find extra volume needed to preserve contribution after a discount.
Open calculator →Payment processing fee comparison
Compare user-entered fee schedules for the same transaction mix.
Open calculator →Cash conversion cycle
Combine receivable inventory and payable days into cash tied-up time.
Open calculator →Accounts receivable collection days
Measure collection speed using average receivables and credit sales.
Open calculator →Inventory carrying cost
Price the annual cash burden of holding a specified inventory balance.
Open calculator →Supplier early payment discount
Compare the effective annual cost of declining a supplier discount.
Open calculator →Customer acquisition payback
Find contribution dollars and months needed to recover acquisition cost.
Open calculator →Working capital and liquidity
Calculate net working capital, current ratio and quick ratio from matching balance-sheet amounts.
Open calculator →Business valuation range
Explore a supplied earnings-multiple range or net asset estimate, with the basis and debt adjustments stated explicitly.
Open calculator →Business loan payment and total cost
Estimate fixed monthly loan payments, interest, fees and payoff timing, including optional extra monthly principal payments.
Open calculator →General total cost of ownership
Add acquisition, recurring, one-off and end-of-life costs over a supplied ownership period for an asset or service.
Open calculator →Inventory reorder point and stock coverage
Calculate a supplied reorder threshold, available inventory position and days of stock from matching unit records.
Open calculator →Inventory turnover and days in inventory
Measure cost-based inventory turnover and holding days over your selected accounting period.
Open calculator →Economic order quantity
Estimate the continuous order size balancing entered annual ordering and holding costs under the basic EOQ assumptions.
Open calculator →Inventory shrinkage and stock variance
Compare expected and physically counted stock for one item, with shortages and surpluses valued at the supplied unit cost.
Open calculator →Flat rate service job pricing
Build a flat service price from estimated person-hours, materials, travel and other job costs.
Open calculator →Receivables aging and past due balances
Group remaining invoice balances by calendar days past their supplied due dates.
Open calculator →Personal finance
Emergency fund target and saving time
Work out a cash reserve from essential monthly spending and your chosen coverage period, then estimate the remaining saving time.
Open calculator →Inflation and purchasing power
Translate a supplied amount between future nominal money and today’s purchasing power using an explicit assumed inflation rate.
Open calculator →Personal net worth
Add supplied asset values and outstanding liabilities to calculate a dated personal net-worth snapshot.
Open calculator →Monthly budget and surplus
Convert supplied income and spending frequencies into monthly equivalents, then separate debt payments and planned savings to show a surplus or shortfall.
Open calculator →Debt to income ratio
Compare supplied required monthly debt payments with gross monthly income without assigning a lender approval threshold.
Open calculator →Credit card payoff with fixed payments
Estimate payoff time and interest for one balance under a fixed APR and fixed total monthly payment, without new charges or fees.
Open calculator →Retirement planning
Retirement savings projection
Project retirement savings from your current balance, chosen retirement age and regular contributions, with a purchasing-power comparison.
Open calculator →Retirement contribution target
Calculate a monthly contribution needed for your chosen retirement target, using a stated nominal or today-money target and assumed growth.
Open calculator →Retirement withdrawal runway
Explore how long a supplied savings balance can fund assumed monthly withdrawals, with constant returns and an explicit annual withdrawal increase.
Open calculator →Savings & interest
CD interest and maturity
Estimate certificate-of-deposit maturity value and interest from a supplied APY or nominal interest rate, deposit and term.
Open calculator →APY and interest rate
Convert a nominal annual interest rate to APY, or annualize interest earned on an unchanged principal over a supplied number of days.
Open calculator →Compound interest with contributions
Calculate savings growth with regular monthly deposits, selectable deposit timing, and effective annual or nominal compounded interest.
Open calculator →Savings goal monthly contribution
Find the monthly deposit required to reach a chosen future savings goal from an existing balance and assumed interest.
Open calculator →Investment fee comparison
Compare two supplied annual percentage fees on otherwise identical constant-return savings scenarios, including ongoing contributions.
Open calculator →Electrical
7 toolsLighting retrofit financial payback
Compare measured fixture watts hours maintenance and installed costs.
Open calculator →Electrical load factor
Compare average electrical demand with measured peak demand over the same billing period.
Open calculator →Motor efficiency energy savings
Price fixed-output shaft work at two supplied efficiencies.
Open calculator →Generator fuel operating cost
Budget measured generator fuel burn and running hours.
Open calculator →Utility peak demand charge
Price a supplied billing demand under explicit tariff and ratchet assumptions.
Open calculator →Power factor bill penalty payback
Evaluate correction solely from entered utility billing penalty scenarios.
Open calculator →Battery storage tariff arbitrage economics
Compare supplied usable capacity efficiency and tariff periods.
Open calculator →Landscaping
13 toolsLawn mowing service price
Price recurring lawn maintenance using measured crew time and operating costs.
Open calculator →Landscape route profitability
Find per-stop profit after supplied driving service and overhead costs.
Open calculator →Recurring service route customer capacity
Calculate recurring-customer capacity from crew visit time, travel and service frequency for mowing, pest control, pool service and other field routes.
Open calculator →Electric vs gas mower ownership cost
Compare supplied purchase life battery fuel and maintenance scenarios.
Open calculator →Mowing productivity
Estimate throughput from deck width speed and explicit field efficiency.
Open calculator →Landscape maintenance seasonal contract
Translate specified visits tasks and seasonal overhead into contract price.
Open calculator →Landscaping maximum profitable travel
Find travel time or distance affordable after on-site costs and required contribution.
Open calculator →Mulch soil and gravel volume
Calculate bulk cubic yards or whole bags from measured landscape area and depth, with optional material cost comparisons.
Open calculator →Lawn mowing acres per hour
Calculate lawn-mowing acres per hour, square feet per hour and mowing time from measured work or mower width, travel speed and efficiency.
Open calculator →Pavers base and bedding sand
Estimate paver pieces or packs plus base and bedding volumes using net area, supplied depths and an explicit loose-base allowance.
Open calculator →Sod rolls and pallets
Estimate whole sod rolls, slabs or pallets from net ground area and the supplier stated coverage per purchasing unit.
Open calculator →Grass seed quantity and bags
Convert a supplied seed label rate and measured lawn area into seed weight and whole bags without choosing a seed variety or application rate.
Open calculator →Landscape edging lengths and stakes
Estimate edging pieces, joining points and stake packs from separate measured runs, supplied overlaps and stake spacing.
Open calculator →Property ownership
12 toolsRental property cash flow
Reconcile rent vacancy operating costs reserves and debt service.
Open calculator →Rental break even occupancy
Find occupancy required to cover specified fixed and variable costs.
Open calculator →Property repair replacement reserve
Fund a user-entered list of replacement amounts and dates.
Open calculator →Mortgage extra payment savings
Compare payoff time and total interest with and without supplied extra principal payments.
Open calculator →Property vacancy loss
Price vacant days and supplied turnover charges without predicting leasing demand.
Open calculator →Property net operating income and cap rate
Separate operating return from financing and capital spending.
Open calculator →Rental cash on cash return
Compare annual pre-tax cash flow to initial cash invested.
Open calculator →Property improvement payback
Test an improvement against supplied rent gain vacancy and operating savings.
Open calculator →Rental management fee comparison
Compare quoted fee structures on the same property assumptions.
Open calculator →Property debt service coverage
Measure stated NOI against scheduled annual debt service.
Open calculator →Owner occupied property annual cost
Budget ownership cash costs with user-supplied bills and reserves.
Open calculator →Property operating expense ratio
Benchmark internal expense share without recommending market benchmarks.
Open calculator →Welding and fabrication
9 toolsFabrication shop hourly rate
Recover shop overhead from realistic productive machine and labor hours.
Open calculator →Fabrication setup batch cost
Allocate setup across batch sizes and find target unit cost volume.
Open calculator →Welding process cost comparison
Compare already-qualified process options using measured production data.
Open calculator →Welding arc on productivity cost
Separate arc time from total paid operating time.
Open calculator →Welding shielding gas operating cost
Price approved measured gas flow during arc and pre/post flow.
Open calculator →Fabrication rework scrap cost
Price actual rejected and reworked production without prescribing tolerances.
Open calculator →Material volume density and plate weight
Estimate material weight from a known solid or bulk volume, or from rectangular sheet/plate dimensions and a supplied matching density.
Open calculator →Rectangular sheet cut grid
Estimate equal rectangular parts from stock sheets using straight uniform rows, kerf and edge trimming, with an optional 90-degree rotation comparison.
Open calculator →Scrap rate and first pass yield
Calculate rejected-unit percentage, first-pass yield and scrap value from one production batch.
Open calculator →Plumbing
7 toolsPlumbing flat rate vs hourly pricing
Compare same-job revenue and contribution under a flat quote and an hourly schedule as duration changes.
Open calculator →Measured water leak cost
Turn collected water over measured time into volume and tariff cost.
Open calculator →Pump electricity cost
Price measured pump electrical demand and running hours.
Open calculator →Plumbing service call minimum charge
Recover dispatch travel labor and overhead at a target job margin.
Open calculator →Water heater operating cost comparison
Compare supplied delivered heat demand and efficiencies across fuels.
Open calculator →Water saving fixture payback
Price supplied flow reduction and observed usage without selecting fixtures.
Open calculator →Hot water recirculation cost
Combine measured pump kWh and user-entered loop heat losses.
Open calculator →Maintenance backlog clearance
Translate ready-work hours to backlog weeks and model clearance while new work arrives.
Open calculator →Air compressor unloaded energy cost
Separate measured loaded and unloaded compressor energy and operating cost.
Open calculator →Compressed air measured leak cost
Price measured leakage using measured compressor specific power.
Open calculator →Hydraulic pressure loss energy cost
Price theoretical dissipated fluid energy across a measured pressure loss, without sizing a line or promising bill savings.
Open calculator →Hydraulic power and efficiency
Explain theoretical fluid power and input demand with supplied efficiency.
Open calculator →Industrial machine OEE
Measure availability performance and quality from observed production.
Open calculator →Maintenance repair labor budget
Budget scheduled maintenance tasks using owner-entered intervals and durations.
Open calculator →Plastics purging cost
Calculate recorded or assumed injection-molding and extrusion changeover expense from purge material, transition resin, separate scrap, labor and downtime.
Open calculator →Painting and coatings
5 toolsPainting crew project duration
Convert supplied person-hours and fixed elapsed stages into a crew calendar without calculating quantities or cure times.
Open calculator →Spray booth operating energy cost
Budget spray, bake and idle energy from measured inputs and supplied durations, without selecting process conditions.
Open calculator →Painting labor productivity price
Price labor from already-measured surface area and observed productivity.
Open calculator →Coating application method economics
Compare quoted total applied cost and measured throughput by method.
Open calculator →Paint area and gallons
Measure wall or ceiling sections, subtract openings and estimate paint containers from coats and the actual product coverage.
Open calculator →Restaurants
11 toolsRecipe portion cost
Find the ingredient cost of a batch and each sellable portion from package prices and quantities used.
Open calculator →Menu price from food cost target
Translate a recipe portion cost and your chosen food-cost share into an illustrative menu price.
Open calculator →Restaurant prime cost
See the combined food and beverage cost plus loaded labor cost for the same operating period.
Open calculator →Restaurant food inventory usage
Reconcile food stock used over a period rather than treating every purchase as current-period food cost.
Open calculator →Restaurant labor cost percentage
Compare the actual loaded labor bill with sales from the same shifts or accounting period.
Open calculator →Restaurant sales per labor hour
Measure sales throughput from all paid person-hours, including setup, preparation and closing time.
Open calculator →Restaurant table turnover
Measure completed table-service cycles and relate observed party spending to the same service period.
Open calculator →Restaurant delivery order contribution
Find what one restaurant delivery sale leaves after entered food, packaging, labor and channel charges.
Open calculator →Restaurant food waste cost
Price recorded waste using matching purchased units and paid package costs.
Open calculator →Restaurant break even covers
Translate fixed costs into covers per service and check the result against your supplied seating and turn assumptions.
Open calculator →Liquid pour yield and shrinkage
Estimate keg or bottle servings and beverage cost while separating discarded foam, draft-line purges, other measured losses and free-pour variance.
Open calculator →Farming livestock
7 toolsLivestock feed expense
Budget purchased-feed expense for an entered group and feeding period without prescribing a ration.
Open calculator →Livestock feed cost per weight gain
Measure feed-only cost per pound gained for the same closed group and observation period.
Open calculator →Livestock gross margin per head
Reconcile a completed livestock group sale against its entered direct enterprise costs.
Open calculator →Livestock days on feed budget
Translate supplied start/target weights and an assumed daily gain into elapsed days and a feed-cash budget.
Open calculator →Livestock transport trip cost
Budget the number of loads and transport expense from your supplied permitted capacity and trip costs.
Open calculator →Pasture rental cost per head day
Compare supplied pasture lease scenarios on an entered animal-day basis, including additional cash expenses.
Open calculator →Pasture forage supply and feed budget
Compare measured pasture dry-matter supply with an entered livestock group demand over a chosen grazing period.
Open calculator →Farming produce
6 toolsCrop gross margin per acre
Calculate enterprise gross margin from harvested output, realized prices and entered variable field costs.
Open calculator →Produce packout revenue
Separate culls and grade mix to calculate saleable quantity and revenue after an explicit unsold share.
Open calculator →Produce harvest labor cost comparison
Compare supplied hourly and piece-rate cash labor scenarios for the same harvested and packed quantity.
Open calculator →Produce market channel net return
Compare a supplied wholesale, farmstand or market scenario after channel-specific selling costs and selling time.
Open calculator →Irrigation electricity cost per acre
Allocate measured irrigation electricity expense over the actual serviced field area.
Open calculator →Crop storage loss economics
Compare immediate sale with a supplied storage scenario after shrink, storage charges and later unit prices.
Open calculator →Farming equipment
5 toolsFarm machinery fuel cost per acre
Allocate recorded operation fuel and other per-use expenses across the acres actually completed.
Open calculator →Farm implement effective field capacity
Translate supplied width, actual working speed and observed or assumed field efficiency into acres per working hour.
Open calculator →Farm custom hire versus own operation
Compare entered custom-work charges with allocated ownership and operating costs over a supplied annual acreage.
Open calculator →Farm work window capacity
Check whether supplied machine capacity and usable work hours can complete an entered acreage within a chosen window.
Open calculator →Farm acres per hour
Calculate farm acres per hour and field work time from completed acreage and elapsed hours, or implement width, operating speed and efficiency.
Open calculator →Delivery drivers
10 toolsDelivery offer net earnings
Evaluate a Spark, DoorDash, Uber, Uber Eats, Roadrunner or other delivery offer using total route distance and elapsed time.
Open calculator →Delivery shift net hourly earnings
Calculate shift earnings using all chosen work-session hours and all business miles rather than only app active time.
Open calculator →Delivery vehicle cost per total mile
Build an explicit operating-cost estimate from actual fuel and other vehicle expenses over matching recorded mileage.
Open calculator →Delivery minimum acceptable offer
Calculate the displayed offer needed to cover a full route and your chosen pre-tax hourly earnings target.
Open calculator →Stacked delivery incremental earnings
Assess only the additional pay, detour expense and elapsed time created by adding a delivery to an existing route.
Open calculator →Delivery unpaid return trip impact
See how unremunerated travel after a delivery changes the net hourly result of the entire trip.
Open calculator →Delivery wait time cost
Separate actual waiting expense from the value of earning capacity that might have been used elsewhere.
Open calculator →Delivery additional bonus trip economics
Evaluate remaining trips for an explicitly additional bonus, including extra travel and the available work window.
Open calculator →Delivery platform statement reconciliation
Reconcile a driver wallet balance without treating a bank payout as the same thing as earned income.
Open calculator →Delivery earnings goal trips and time
Translate your own net earnings goal into whole trips and elapsed work-session time using supplied averages.
Open calculator →Construction
31 toolsBusiness costs and bids
Construction job budget variance
Track projected final job cost from actual costs to date plus the remaining cost estimate.
Open calculator →Construction crew daily cost
Budget one crew workday from supplied staffing hours, all-in labor rates and entered daily job expenses.
Open calculator →Construction bid price worksheet
Combine measured labor, quoted total expenses, allocated overhead and an explicit risk allowance into a target-margin bid price.
Open calculator →Construction change scope cost impact
Price the cost effect of entered added work, removed-work credits and extra time-related overhead.
Open calculator →Construction milestone cash gap
Model actual cash receipts and job payments in chronological periods to find the peak funding needed above a chosen reserve.
Open calculator →Construction retention funding cost
Estimate simple carrying cost of entered withheld cash amounts over owner-supplied waiting periods.
Open calculator →Construction equipment rental job allocation
Convert one supplied rental quote and its minimum billing block into a job-level equipment expense.
Open calculator →Construction schedule overrun overhead
Separate the additional time-related cash expense of a supplied schedule extension from already-budgeted direct work.
Open calculator →Construction weekly backlog staffing capacity
Compare planned weekly project labor with supplied available productive person-hours, including a starting ready-work backlog.
Open calculator →Construction project contribution per crew day
Normalize a supplied project contribution against the crew-days it occupies to make capacity use visible.
Open calculator →Roof area and roofing squares
Estimate roof surface area, roofing squares and shingle bundles from measured roof planes, a simple pitched footprint or known surface area.
Open calculator →Concrete slab volume and bags
Calculate concrete for rectangular slabs from dimensions or known area, depth, an allowance and the actual mix bag yield.
Open calculator →Flooring and tile boxes
Measure rooms or enter net floor area to estimate material allowance, whole boxes, surplus and optional installed cost.
Open calculator →Drywall sheets and finishing materials
Estimate drywall sheets, compound containers, tape rolls, corner bead and screws from measured area and your supplied finishing quantities or rates.
Open calculator →Brick block and mortar quantities
Estimate masonry units, whole pallets and mortar bags from net wall area, nominal face coverage and the actual mortar product yield.
Open calculator →Deck boards and coverage
Estimate straight parallel deck-board rows and stock boards from actual board width, gap, deck dimensions and stock length.
Open calculator →Fence posts panels pickets and concrete
Estimate material counts for separate straight fence runs, using supplied bay spacing, optional picket dimensions and measured post-hole concrete sizes.
Open calculator →Siding panels squares and trim
Estimate net siding coverage, full packages, roofing-style squares and measured trim stock lengths from supplied product coverage.
Open calculator →Roofing accessories and underlayment
Estimate underlayment rolls, starter bundles, ridge-cap bundles and drip-edge pieces from measured roof area and edge lengths.
Open calculator →Footing and trench concrete
Add concrete volumes for supplied rectangular footing or trench runs, with repeat counts, allowance and optional bag or ready-mix costs.
Open calculator →Concrete steps volume
Estimate a solid rectangular stair-step mass from equal supplied risers and treads, plus an optional separate landing.
Open calculator →Multiple concrete pours
Combine rectangular and round concrete forms into one net volume and one ordering allowance for the same concrete mix.
Open calculator →Insulation batts rolls and boards
Calculate whole insulation packages from measured area, layers and the coverage stated for your selected product and installation.
Open calculator →Tile grout and mortar coverage
Estimate whole grout containers and tile-setting mortar bags using the actual product coverage for your tile, joints and installation.
Open calculator →Trim molding and stock lengths
Estimate baseboard, crown, casing or other trim stock from separate measured runs without assuming perfect offcut reuse.
Open calculator →Asphalt area thickness and tonnage
Estimate asphalt mix mass from net paved area, specified compacted thickness and your supplied compacted density.
Open calculator →Construction geometry
Rectangle diagonal and perimeter
Find the target diagonal, perimeter and area of an assumed rectangle from two perpendicular side lengths.
Open calculator →Right triangle lengths and angles
Solve a right triangle from two legs, a hypotenuse and leg, or a horizontal leg and angle.
Open calculator →Slope grade and rise run
Convert measured rise and horizontal run to grade, angle and sloping length, or find rise from a supplied grade.
Open calculator →Triangle area from three sides
Calculate the area, perimeter and angles of a triangle from three measured side lengths.
Open calculator →Round footing and cylinder volume
Estimate solid or hollow cylindrical volumes for measured round forms, piers or footings, with quantity and an explicit allowance.
Open calculator →Measurement & Materials
4 toolsGeneral measurement & fabrication
Area and square footage
Measure rectangles, triangles, circles and trapezoids; combine sections and subtract cutouts to find net square footage.
Open calculator →Feet and inches
Add or subtract two measurements, or multiply one length by a count, with fractional-inch entry and decimal conversions.
Open calculator →Area and volume converter
Convert square feet, square yards, acres and square meters, or cubic feet, cubic yards and cubic meters.
Open calculator →Roll goods length area and cost
Convert required coverage to roll length and whole rolls using supplied material width and allowance.
Open calculator →Time & work hours
2 toolsTime duration
Find time between two clock readings, including an explicit end-day offset and optional excluded minutes.
Open calculator →Timesheet hours
Add shift hours from clock-in and clock-out readings, overnight flags and explicitly unpaid breaks, with an optional straight-rate amount.
Open calculator →Computer performance
2 toolsPC bottleneck and frame budget
Compare measured CPU and GPU processing times for one game or workload against your target frame rate.
Open calculator →CPU clock and measured overclock comparison
Calculate a supplied clock multiplier result and compare measured benchmark performance before and after a hardware change.
Open calculator →Everyday math
6 toolsPercentage change
Compare a new value with a positive original value, showing the difference and percentage increase or decrease.
Open calculator →Sale price and discounts
Apply two sequential discounts and a separate order coupon to a quantity of identical items.
Open calculator →Unit price comparison
Compare two package prices using compatible quantities, including mixed US and metric units.
Open calculator →Tip and bill splitting
Calculate an additional tip, including an option to top up an existing gratuity, and split the final bill exactly to cents.
Open calculator →Sales tax from entered rate
Add a supplied combined sales-tax rate to a pre-tax amount or separate tax from an inclusive total.
Open calculator →Hourly and annual gross pay
Convert hourly pay or an annual salary using supplied paid hours and weeks, before any deductions.
Open calculator →Automotive services
3 toolsAuto repair labor and parts margin
Separate billed labor, technician cost and parts contribution for an automotive repair job.
Open calculator →Auto detailing package cost and price
Price a detailing package from observed service time, consumables, mobile travel and overhead.
Open calculator →Tire installation service contribution
Calculate installation-only contribution and bay time for a tire service order.
Open calculator →Retail and e-commerce
3 toolsMarketplace order net contribution
Compare one online order sale with product, shipping, advertising and entered marketplace fees.
Open calculator →Product landed cost per sellable unit
Allocate a shipment purchase, freight and entered import or handling costs over usable units.
Open calculator →Retail returns cost impact
Estimate refunds, recovery value and handling expense for an entered order cohort.
Open calculator →Wholesale and distribution
4 toolsWholesale case pack order quote
Price full-case wholesale orders and compare the invoice with goods, fulfillment and freight cost.
Open calculator →Warehouse picking labor budget
Calculate picking workload and labor expense from order lines and observed productivity.
Open calculator →Order fill rate and backorders
Measure order and unit fulfillment separately for a consistent customer-order cohort.
Open calculator →Shipment freight allocation by product line
Allocate a shipment freight bill across product lines using a chosen common basis and reconcile cents.
Open calculator →Lodging and hospitality
4 toolsHotel occupancy ADR and RevPAR
Calculate room occupancy, average daily room rate and revenue per available room for the same period.
Open calculator →Hotel room turnover cleaning cost
Budget housekeeping time, laundry and supplies for departures and stayover service separately.
Open calculator →Hotel booking channel net revenue
Compare a room booking after commission and separately incurred channel or processing charges.
Open calculator →Hotel stay length and nightly cost
Spread one-time turnover costs over a stay and calculate a nightly rate covering entered stay costs at a chosen margin.
Open calculator →Beauty and wellness services
3 toolsSalon treatment service cost and price
Price an appointment from service time, treatment product use, disposables and room overhead.
Open calculator →Salon chair rental versus commission
Compare a practitioner's retained service receipts under chair rental and commission arrangements.
Open calculator →Appointment utilization and rebooking
Measure booked-time utilization, attended appointments and future rebookings using matching appointment records.
Open calculator →Pet services
3 toolsPet grooming appointment capacity
Estimate a groomer's daily appointment capacity after setup, cleaning and non-service time.
Open calculator →Pet boarding occupancy break even
Calculate boarding contribution and occupied pet-nights needed to cover entered period overhead.
Open calculator →Pet boarding stay charges
Calculate a boarding bill from calendar nights, pet count and supplied service add-ons.
Open calculator →Childcare and education
3 toolsChildcare classroom operating budget
Compare entered classroom tuition with staffing and operating expense using your own authorized capacity.
Open calculator →Tutoring group class price
Set a per-student class price that covers teaching, preparation, materials and venue cost.
Open calculator →Tuition and session fee proration
Prorate a supplied tuition fee by eligible days or sessions and apply entered fees and credits.
Open calculator →Practice appointment capacity
Budget appointment slots and expected attended visits from available clinician time and supplied attendance assumptions.
Open calculator →Practice no show collections impact
Measure unrecovered missed appointments and their contribution impact after replacement bookings.
Open calculator →Practice adjusted collection rate
Compare matched collections with charges after supplied approved contractual adjustments.
Open calculator →Professional services
3 toolsRetainer hours and profitability
Compare a monthly retainer with actual client hours, delivery costs and included-hour allowance.
Open calculator →Fixed fee project scope overrun
Calculate remaining contribution and the extra fee needed to preserve a chosen margin after scope growth.
Open calculator →Billable work realization and collections
Measure how recorded billable value turns into invoices and matched collections.
Open calculator →Software and IT services
5 toolsSubscription customer unit economics
Calculate monthly subscription contribution and simple acquisition-cost payback from entered customer economics.
Open calculator →Cloud hosting cost per customer
Allocate fixed hosting, measured usage charges and storage across active customers for one billing month.
Open calculator →Subscription MRR and ARR bridge
Reconcile recurring revenue changes and distinguish new sales from starting-customer retention.
Open calculator →Customer cohort retention and churn
Measure starting-customer retention separately from new and reactivated customer growth.
Open calculator →Service ticket capacity and backlog
Compare helpdesk or public-service ticket arrivals with supplied completion capacity or actual closures.
Open calculator →Print and sign production run price
Price a print or sign run from setup, stock sheets, spoilage allowance and production time.
Open calculator →Embroidery job production cost
Budget machine runs, handling, blanks and setup for an embroidery order.
Open calculator →Paper stock and shipment weight
Calculate paper weight from sheet dimensions, sheet count and supplier basis weight in grams per square meter.
Open calculator →Events and venues
4 toolsEvent ticket break even
Calculate ticket contribution and whole admissions needed to cover an event budget.
Open calculator →Event rental package cost and quote
Price an event rental package with delivery, setup, item-use costs and cleaning allowance.
Open calculator →Event tables chairs and linen quantities
Calculate seating furniture and linen counts from a chosen seating layout and supplied reserve quantities.
Open calculator →Venue rental additional hour charges
Apply a supplied booking fee and rounded extra-time policy to a known rental duration.
Open calculator →Fitness and recreation
3 toolsGym membership break even
Calculate memberships needed to cover entered monthly operating costs.
Open calculator →Fitness class profitability
Compare paid class attendance with instructor, venue and participant costs.
Open calculator →Prepaid service package economics
Compare a prepaid package price with expected redeemed visits and entered delivery cost.
Open calculator →Trucking moving and storage
3 toolsFreight trip contribution and empty miles
Calculate freight trip contribution using loaded and empty miles, driver time and trip expenses.
Open calculator →Moving job labor truck and supplies quote
Build a moving-job quote from crew time, truck use, travel and packing materials.
Open calculator →Self storage occupancy and operating contribution
Calculate storage occupancy and operating contribution for a monthly unit mix.
Open calculator →Waste and recycling
4 toolsDumpster rental job cost and quote
Price a dumpster booking from hauling, disposal weight and allocated container use.
Open calculator →Recycling recovery yield and value
Compare recovered saleable material with input purchase, processing and reject disposal costs.
Open calculator →Weighbridge net load and disposal charge
Calculate net material weight and a supplied tipping charge from gross and tare measurements.
Open calculator →Scrap metal lot payout
Total supplier-quoted payments for separate material grades after entered deductions.
Open calculator →Food production and catering
3 toolsBakery batch yield and unit cost
Calculate sellable bakery units and unit cost after batch losses.
Open calculator →Catering portions and purchase quantity
Convert guests and a supplied serving amount into ready-to-serve quantity and purchase weight.
Open calculator →Recipe scaling and whole batch plan
Scale ingredient quantities for a target output using a supplied usable yield and optional whole-batch rounding.
Open calculator →Forestry and sawmills
3 toolsLog hauling load cost
Allocate a logging transport round trip over delivered load weight or volume.
Open calculator →Sawmill lumber recovery and production cost
Compare solid log volume with finished lumber output and allocate batch production cost.
Open calculator →Log volume and mixed lumber tally
Estimate log solid volume from end diameters or tally mixed rectangular lumber dimensions.
Open calculator →Fishing and aquaculture
4 toolsCommercial fishing trip operating budget
Compare saleable catch and dock price with fuel, crew and other trip expenses.
Open calculator →Aquaculture feed conversion and expense
Measure feed conversion for a reconciled stock group and feed cost per pound of biomass gain.
Open calculator →Aquaculture biomass and survival
Convert a supplied stock count and measured mean weight into live biomass and cohort survival.
Open calculator →Fish processing yield and sellable cost
Measure recorded saleable fish-product yield and allocate purchase and processing cost to finished pounds.
Open calculator →Mining and aggregates
4 toolsAggregate production cost per ton
Allocate extraction and processing expense over saleable aggregate output.
Open calculator →Haul truck cycle production capacity
Estimate transported output from cycle time, usable work time and a verified load quantity.
Open calculator →Stockpile volume and tonnage
Estimate an idealized stockpile volume and convert it to mass using a supplied matching bulk density.
Open calculator →Aggregate product split and sales value
Reconcile saleable product grades with input material and calculate entered grade revenues.
Open calculator →Generator plant operating cost per kWh
Calculate generation operating cost from metered output and recorded fuel and maintenance expenses.
Open calculator →Water treatment operating cost
Allocate measured treatment expense over delivered water volume.
Open calculator →Electricity bill blended and variable rate
Separate an effective all-in electricity bill rate from the entered energy-charge component.
Open calculator →Fuel reserve operating runtime
Estimate constant-consumption runtime from usable fuel and a measured or supplied matching burn rate.
Open calculator →Portfolio target allocation and rebalancing
Compare holding values with chosen targets and calculate arithmetic buy or sell amounts after a cash addition.
Open calculator →Investment holding period total return
Calculate a period return from investment values, separate distributions and fees without external cash flows.
Open calculator →Insurance agency commission operating budget
Budget agency commissions, chargebacks and servicing expenses from contract terms.
Open calculator →Fundraising event net proceeds
Calculate funds retained after event direct costs and separately allocated overhead.
Open calculator →Program cost per participant
Allocate program expenses over unique participants and service visits.
Open calculator →Donor cohort retention and giving
Compare returning donors and their gifts with the same previous-period donor cohort.
Open calculator →Pledge collection and fundraising goal
Separate a fundraising goal, recorded pledges and cash actually collected toward those pledges.
Open calculator →Public service operations
2 toolsPublic service unit operating budget
Allocate a service budget over units delivered and calculate its funding gap.
Open calculator →Budget spent committed and remaining
Reconcile spending and open commitments against a period budget and estimate a simple uncommitted run rate.
Open calculator →Pest control
2 toolsPest control recurring route budget
Budget a recurring pest-control route from customer visits, travel, labor and supplies.
Open calculator →Recurring service agreement renewal
Measure renewal and revenue changes for a fixed cohort of service agreements coming due.
Open calculator →Pool service
2 toolsPool service recurring contract budget
Calculate recurring pool-service cost per customer from measured visit time, supplies and route expenses.
Open calculator →Pool volume refill cost and turnover time
Estimate a simple pool volume, selected refill expense and arithmetic circulation time from a supplied actual flow.
Open calculator →Pressure washing
2 toolsPressure washing job price and production time
Price a pressure-washing job from measured work area and productivity or directly known person-hours.
Open calculator →Pressure washing water and supplies budget
Estimate water consumption from actual trigger time and total user-supplied consumable expense.
Open calculator →Restoration services
2 toolsRestoration drying equipment rental budget
Budget a supplied drying-equipment rental schedule and technician monitoring visits.
Open calculator →Restoration contents packout and storage budget
Budget a supplied contents packout, storage duration and return-delivery plan.
Open calculator →Appliance repair
2 toolsAppliance repair service call contribution
Calculate a repair call contribution while accounting for a diagnostic fee credited toward the repair.
Open calculator →Repair estimate acceptance and followup workload
Measure acceptance of a fixed repair-estimate cohort and its associated quoted work value.
Open calculator →Locksmith services
2 toolsLocksmith service call quote
Price a supplied locksmith job from dispatch, on-site labor, hardware and travel costs.
Open calculator →Key duplication batch price and blank quantity
Price a supplied duplication order from required usable keys, measured rejection allowance and recorded production cost.
Open calculator →Security and low voltage
3 toolsSecurity and low voltage installation budget
Budget device and cable materials, installation labor and allocated project costs from a supplied design.
Open calculator →CCTV storage bandwidth and recording time
Calculate storage from supplied average recording bitrates, recording hours and retention days.
Open calculator →Battery backup energy runtime
Estimate constant-load backup duration from supplied battery energy and real-watt loads.
Open calculator →Tree care and arborists
2 toolsTree care crew job budget
Build a tree-care job budget from supplied crew time, equipment, disposal and travel.
Open calculator →Tree debris truckloads and disposal budget
Budget debris loads using supplied compacted volume and optional measured weight against verified truck capacity.
Open calculator →Excavation and grading
2 toolsExcavation cut fill and haul loads
Compare supplied bank-volume cut and fill quantities and estimate export truckloads using an entered swell factor.
Open calculator →Trench bedding and backfill quantities
Calculate ideal rectangular trench, base bedding and remaining backfill volumes around a supplied outside pipe diameter.
Open calculator →Cabinet project material and labor budget
Price a supplied cabinet project using sheet stock, hardware, finishing and shop person-hours.
Open calculator →Lumber board feet and purchase cost
Convert supplied board dimensions into board feet, actual solid cubic feet and cost on a chosen board-foot price basis.
Open calculator →Edge banding rolls and cost
Total supplied exposed-edge runs and calculate full rolls with a chosen extra allowance.
Open calculator →Cabinet hardware quantities and budget
Convert assembly counts and supplied hardware quantities into ordering packs and a material budget.
Open calculator →Glazing and glass services
3 toolsGlass panel area weight and material cost
Estimate rectangular glass panel area, mass and purchase cost from supplied thickness and material density.
Open calculator →Glazing edgework and fabrication quote
Price identical supplied panels with material, selected edge finishing, holes and setup charges.
Open calculator →Sealant bead volume and cartridge quantity
Estimate supplied bead geometry and complete cartridges using actual fill volume and an entered waste allowance.
Open calculator →Garage door services
1 toolsSolar installation
2 toolsSolar installation supplied energy payback
Compare a supplied solar quote with separately entered self-used and exported energy values.
Open calculator →Solar quote cost per watt and specific yield
Compare supplied solar quote cost and annual AC energy against declared DC nameplate capacity.
Open calculator →Insulation contracting
3 toolsInsulation contractor installation budget
Price insulation installation from measured coverage, quoted material cost and observed labor productivity.
Open calculator →Spray foam board feet and kit quantity
Convert supplied coverage area and thickness to material board feet and whole kits at a supplied usable kit yield.
Open calculator →Blown in insulation bag coverage
Calculate whole bags from product-chart coverage at an already-selected application and target specification.
Open calculator →Markets & Investing
20 toolsPrecious metals value
Use this precious metals value calculator for gold, silver, platinum or palladium: refresh live USD spot quotes or enter a dated price, weight and purity.
Open calculator →Scrap precious metal payout
Use this scrap precious metal payout calculator to estimate a dealer payout from fine-metal value, an entered payout percentage and fixed deductions.
Open calculator →Bullion premium and purchase cost
Use this bullion premium and purchase cost calculator to compare a total dealer ask with contained-metal value and include separate purchase fees.
Open calculator →Precious metals investment gain or loss
Use this precious metals investment gain or loss calculator to compare all-in acquisition cost with a spot-based resale scenario after fees.
Open calculator →Precious metals resale break even
Use this precious metals resale break even calculator to find the spot price required to recover acquisition cost after dealer discounts and selling fees.
Open calculator →Gold silver ratio
Use this gold silver ratio calculator with refreshed USD spot quotes or matching entered prices to compare gold and silver on the same fine-troy-ounce basis.
Open calculator →Stock gain or loss after fees
Use this stock gain or loss after fees calculator to compare an entered purchase and sale or valuation price, including explicit transaction fees.
Open calculator →Average stock purchase cost
Use this average stock purchase cost calculator to combine purchase lots and fees into a weighted average per share.
Open calculator →Dividend yield and income
Use this dividend yield and income calculator to compare entered annual dividends with current price and acquisition cost.
Open calculator →Stock total return
Use this stock total return calculator to include cash dividends and fees alongside an entered share-price change, with optional annualized holding-period return.
Open calculator →Stock position sizing
Use this stock position sizing calculator to cap whole-share size by an entered risk budget and available cash for a long position.
Open calculator →EPS growth
Use this EPS growth calculator to compare comparable earnings per share periods and identify when percentage growth is not meaningful.
Open calculator →Price earnings ratio
Use this price earnings ratio calculator with entered share price and comparable annual EPS to calculate P/E or show why it is not meaningful.
Open calculator →Earnings yield
Use this earnings yield calculator to divide entered annual EPS by share price, including explicit negative earnings.
Open calculator →Earnings valuation scenarios
Use this earnings valuation scenarios calculator to project EPS under an entered growth assumption and compare low, base and high P/E multiples.
Open calculator →Portfolio allocation
Use this portfolio allocation calculator to compare entered asset values with target weights and show percentage-point deviations.
Open calculator →Portfolio weighted return
Use this portfolio weighted return calculator to combine entered same-period asset returns with beginning-of-period weights.
Open calculator →Oil barrel volume conversion
Use this oil barrel volume conversion calculator to convert entered petroleum barrels, US gallons and litres without assuming density or product yield.
Open calculator →Oil price change scenario
Use this oil price change scenario calculator to compare entered per-barrel prices for a fixed physical volume, including zero or negative price scenarios.
Open calculator →Fuel cost price sensitivity
Use this fuel cost price sensitivity calculator to compare fuel spending at two entered retail prices using matching usage and fuel-price units.
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