Tip Calculator

Free tip calculator: work out the tip amount, total bill, and per-person cost. Split the bill between any number of people instantly.

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This tool has a free JSON API. Copy a prompt or skill below to use it with ChatGPT, Claude, or any AI agent — no API key needed.

API docs
Enter your bill details above.

How tip calculator works

This tip calculator takes your bill amount, a tip percentage, and the number of people splitting the bill. It computes the tip by multiplying the bill by the percentage, then adds it to the bill for the total, and divides by the number of people for the per-person cost.

Tip percentages vary by country and service. In the United States, 15 to 20 percent is typical for sit-down restaurant service; 18 percent is a common default. In many European and Asian countries, service is included or a smaller tip (5 to 10 percent) is customary. Adjust the percentage to match your local norm.

The calculator rounds monetary values to two decimal places (cents). When splitting, each person share is rounded independently, so the sum of individual shares may differ by a cent or two from the total. This is a normal rounding artifact.

Frequently asked questions

How much should I tip?
It depends on the country and service. In the US, 15 to 20 percent is standard for restaurant service. In Europe, 5 to 10 percent or rounding up is common. In Japan, tipping is not expected. The calculator lets you choose any percentage.
How do I split a bill between multiple people?
Enter the bill amount and tip percentage, then set the number of people to split by. The calculator shows the total bill (including tip) divided by the number of people, plus each person share of the tip.
Should I tip before or after tax?
Convention varies. Many people tip on the pre-tax subtotal, but tipping on the total including tax is also common. The calculator works on whatever bill amount you enter, so use whichever you prefer.
How is the tip calculated?
Tip equals bill times (tip percentage divided by 100). For example, a 50 dollar bill with an 18 percent tip gives 9 dollars in tip, for a total of 59 dollars. Split between 3 people, each pays 19.67.