Everyday Calculators
The numbers that come up at the table and at the store: how much to tip, how to split the check fairly, and what a discount or a raise is really worth.
2 calculators
These calculators answer the small money questions that come up every day, with the arithmetic shown so you can check it at the table.
Which calculator to use
- Tipping and splitting the check — the tip calculator takes the bill, the tip rate and the number of people, tips on the amount before tax if you enter the tax line, and splits the total in whole cents so the shares add up.
- Sale prices — percent off applies one or more discounts in the order stores use and adds sales tax at the end.
- Any other percentage — the percentage calculator answers “what is 18% of 64” and “what percent is 12 of 80”.
Cents, rounding and fair shares
Money splits in cents, and not every total divides evenly: $101.95 among three people is $33.983… each. Paying $33.98 each leaves the check one cent short, so one person pays $33.99. The tip calculator shows that split, or rounds each share up to a whole dollar and tells you what the tip becomes as a percentage. For pay and raises rather than bills, see the pay raise calculator and the hourly to salary calculator.
Frequently asked questions
How much should I tip in the U.S.?
At a sit-down restaurant, 15% to 20% of the bill before tax, according to the Emily Post Institute. The tip calculator shows the common rates side by side.
Should the tip be on the amount before or after tax?
Etiquette guides usually say before tax, because the tax is not part of the service. The tip calculator does this when you enter the tax from the receipt.
How do I split a bill that does not divide evenly?
Some people pay one cent more. The tip calculator splits in whole cents and shows who pays what, or rounds each share up to a whole dollar.