Business and trade mathematics
Everyday math calculators
Calculate percentage changes, sequential sale discounts, comparable unit prices, tips and equal bill splits, entered-rate sales tax and gross pay conversions. Explicit inputs and rounding keep the arithmetic easy to check.
Percentage 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.
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