Tip Calculator (with bill splitting)
Work out the tip and total on a bill at any percentage, and split it evenly between any number of people.
Working out a tip
A tip is a percentage of the bill, added on top. The arithmetic is simple — the useful part is doing it quickly and splitting the result fairly.
tip = bill × percentage / 100 · total = bill + tip
Doing it in your head
The quickest route is 10%: move the decimal point one place left. On a 50 bill that's 5. From there, 15% is 10% plus half of it again (5 + 2.50 = 7.50), and 20% is simply double the 10% figure (10). Those three anchors cover almost every situation without a phone.
Tipping customs vary a lot
There's no universal rate. In the US, 15–20% is normal in restaurants and effectively expected, since tipped staff are often paid a lower base wage. In much of Europe, service is usually included and rounding up or leaving 5–10% is generous. In Japan tipping can even be considered rude. Always check whether a service charge is already on the bill — adding a full tip on top of one means paying twice.
Worked example
A 50 bill at 15% gives a 7.50 tip and a 57.50 total. Split between four people, that's 14.38 each. If you'd rather each person's share came out round, decide the total first and work backwards — tipping to reach a round 60 on a 50 bill means a 10 tip, exactly 20%.
Custom varies more than the arithmetic
The division is exact; what a tip should be is not a mathematical question. Expectations differ sharply between countries — customary in North America, modest or absent in much of Europe and Asia, and in some places actively discouraged. A service charge may already be on the bill, in which case adding a tip on top duplicates it. Check the bill before applying a percentage to it.