Everyday math and shopping calculators
Percentages come up constantly, at the checkout, in a restaurant and at work. These calculators handle the common cases, from working out a sale price and adding sales tax to splitting a bill and setting a profit margin.
Each page shows the formula so you can repeat the calculation yourself.
Profit Margin CalculatorMargin, markup and profit from cost and price, plus the price for a target margin.Percentage CalculatorPercent of a number, what percent one number is of another, and percent change.Tip CalculatorWork out the tip and split the bill between any number of people.Sales Tax CalculatorAdd sales tax to a price, or remove it from a total. Works for VAT and GST too.Discount CalculatorSale price and savings after a percentage discount, including stacked discounts.