Business and trade mathematics
Professional services calculators
Check retainer delivery hours, effective fees and fixed-fee scope overruns for consultants, agencies and other professional-service firms. Contract rights are not inferred.
Retainer 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 →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 →Billable utilization
Measure billable capacity and revenue at a supplied billing rate.
Open calculator →Supplier early payment discount
Compare the effective annual cost of declining a supplier discount.
Open calculator →Time 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 →Appointment utilization and rebooking
Measure booked-time utilization, attended appointments and future rebookings using matching appointment records.
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 →Receivables aging and past due balances
Group remaining invoice balances by calendar days past their supplied due dates.
Open calculator →Service ticket capacity and backlog
Compare helpdesk or public-service ticket arrivals with supplied completion capacity or actual closures.
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