How tipping math works
Tip = bill × tip% ÷ 100. Total = bill + tip. Per person = total ÷ people.
FAQ
How much should I tip at a U.S. restaurant?
15–20% of the bill is typical for sit-down service; 18–20% is a common default.
Do I tip on tax?
Either is fine socially — enter the amount you want to tip on (pre-tax or total).
Can I split unevenly?
This tool splits evenly. For uneven splits, calculate the tip first, then divide portions manually.
Is TipCalc Lab free?
Yes — no signup, and amounts never leave your device.
More free guides
Not sure what % to pick?
Read the tipping guide →