How to Calculate a Tip and Split the Bill
A tip calculation has two steps: apply the percentage to the bill, then divide the bill plus tip by the number of people. Set the percentage to zero and it becomes a plain split.
Open the tool：Tip Calculator & Bill Splitter
Settling the bill without arithmetic errors
A bill of 200, a 10% tip and four diners gives 20 of tip, 220 in total and 55 each. The arithmetic is simple, but with more people, an awkward percentage such as 12.5%, or a service charge already on the bill, it is easy to stumble when the number has to be said out loud.
It matters more abroad. US restaurants expect 15–20%, much of Europe includes service in the bill, and Japan generally does not expect a tip at all. Check whether a service charge is already printed before choosing a percentage, or you may pay twice.
- Work out the tip and the share at the table
- Split a group bill quickly
- Compare totals at different tip percentages
Formula, people and rounding
Tip = bill × percent ÷ 100, total = bill + tip, and each share = total ÷ people. Enter 10 for 10%, not 0.1. People must be at least one; entering zero is treated as one. Amounts and the per-person share are rounded to two decimals, and nothing is adjusted for tax.
Split 100 three ways with a 10% tip and the total is 110, or 36.67 each, which adds up to 110.01. In practice two people can pay 36.67 and one 36.66, or everyone rounds up to 37 and the extra stays as tip. The tool reports the average, not the allocation.
- Percent as 10, not 0.1
- At least one person
- Decide who absorbs the rounding yourself
Pre-tax, post-tax and currency limits
Whether to tip on the pre-tax or post-tax amount is a local custom. In the US, 15–20% of the pre-tax subtotal is common, while plenty of people tip on the taxed total. The tool does not decide: it uses whichever amount you enter, so read the subtotal and tax lines first.
It does not convert currency, judge whether a service charge is mandatory, absorb card fees, or handle diners who ordered different amounts. For an itemised split, use an app that tracks dishes; for cross-currency payments, the exchange rate and card fee can move the final charge.
- Tip on subtotal or total, as local custom dictates
- Check the service charge before tipping twice
- No currency conversion or card-fee handling
FAQ
Why does the per-person share not divide evenly?
Amounts are rounded to two decimals, so a split that does not divide cleanly leaves a cent or two. 110 across three people is 36.67 each, or 110.01 in total. Round down and let one person cover the remainder, or round up and treat the difference as extra tip.
Should the tip be on the pre-tax or post-tax amount?
Customs vary. In the US, 15–20% on the pre-tax amount is common, while many people tip on the taxed total. The tool uses whatever bill you enter, so the result follows your local convention rather than enforcing one.
Can I include a service charge?
Yes, add it to the bill before calculating. The tool does not separate a mandatory service charge from a voluntary tip. If the bill already includes 15% service, a further tip is usually unnecessary unless the service was exceptional.
Related tool：Tip Calculator & Bill Splitter