Tip and Bill Split Calculator
Work out each person share from a total, a tip percent and the number of people, including the leftover difference when it does not divide evenly.
What you enter is calculated only in this browser. It is not sent to a server or stored. Results are for reference and are not financial, tax or legal advice.
For reference only. This tool does not advise on whether to tip or at what rate; it only calculates with the percent you enter.
How to use it
- Enter the total including tax, the tip percent and the number of people. If you know the tax amount, you can enter it (optional).
- Choose whether the tip is based on the total including tax (post-tax) or on the total minus the tax (pre-tax).
- Pick how each share is adjusted (nearest, up or down) and the decimal places to see each share, the sum paid and the difference.
Formulas
Tip = base amount × tip percent / 100, rounded once with the chosen rule (the base is the total for post-tax, or total minus tax for pre-tax). Grand total = total + tip, and each share = grand total / people adjusted to the decimal places in the chosen way. Sum paid = share × people, and difference = sum paid - grand total. Example: 100, 15% tip, 4 people gives a tip of 15, a grand total of 115 and 28.75 each (difference 0).
Assumptions
Whether a tip is expected and how to choose its rate depends on the country, the place and the situation; this tool makes no judgement about that. It assumes everyone pays the same amount (splitting by individual orders is not supported). The result is a reference calculation.
FAQ
What tip percent is appropriate?
This calculator does not suggest a tip percent. Tipping customs and rates differ between countries and places, so enter the percent you decide on. Enter 0% to split by the number of people with no tip.
What is the difference between pre-tax and post-tax tipping?
Post-tax applies the tip percent to the total including tax; pre-tax applies it to the total minus the tax you entered. With a total of 110, tax of 10 and a 20% tip, the post-tax tip is 22 and the pre-tax tip is 20. If the tax field is blank it counts as 0, so both choices give the same result.
What happens when it does not divide evenly?
A grand total of 118 split three ways is 39.3333... At 2 decimals, "nearest" gives 39.33 each and 117.99 paid in total, 0.01 short. "Up" gives 39.34 each and 118.02, which is 0.02 over. The difference shown is the sum paid minus the grand total, and "last person pays" is what the last person pays if they cover the remainder so the sum is exact (not shown if it would be negative).
Are there input limits?
Amounts accept up to 15 integer digits and only as many decimals as the chosen decimal places; the tip percent runs from 0 to 100% and the group from 1 to 1000 people. These are limits set by this site. Your input is never sent to a server.
Sources and check date
This calculator uses plain mathematical definitions and does not rely on an outside reference document.
Date we opened the official documents ourselves: 2026-11-11. Rates, limits and rules can change, so read the original again before an important decision.