Tip calculator
Enter the bill, the percentage you want to leave, and how many people are splitting it.
Result
- Each person pays
- $33.24
- Total with tip
- $99.71
- Tip amount
- $15.21
- Tip each
- $5.07
Worked examples
Splitting a restaurant bill
$84.50 bill, 18% tip, three people.
- 84.50 × 0.18 = 15.21
- 84.50 + 15.21 = 99.71
- 99.71 ÷ 3 = 33.24
$33.24 each.
Working a tip out in your head
Move the decimal point one place left to get 10%, then build from there. On an $84.50 bill, 10% is $8.45, so 20% is $16.90 and 15% is about $12.68. Rounding to a convenient total afterwards is normal and nobody minds.
For 18%, take 20% and subtract a tenth of it — $16.90 less $1.69 is $15.21.
Tipping before or after tax
Convention in the United States is to tip on the pre-tax subtotal, though tipping on the total is common and no one will object. The difference is small on most bills — a few percent of the tip itself.
Where a service charge or gratuity is already included, which is usual for larger groups, an additional tip is optional rather than expected.
Norms vary sharply by country
Tipping practice is cultural, not arithmetic. In much of the United States 15–20% is the working norm for table service. In many European countries rounding up or leaving 5–10% is normal, and in Japan tipping can cause confusion or offence.
If you are travelling, check the local convention rather than exporting your own.
Formula
total = bill × (1 + tip ÷ 100)
Frequently asked questions
How much should I tip at a restaurant?
In the United States, 15–20% of the pre-tax bill is the usual range for table service, with 18% a common default. Norms differ substantially in other countries.
How do I calculate a tip quickly?
Find 10% by moving the decimal one place left, then scale. On $84.50, 10% is $8.45, so 20% is $16.90 and 15% is roughly $12.68.
Should I tip on the pre-tax or post-tax total?
Pre-tax is the convention in the US, but tipping on the total is widely accepted and the difference is minor on most bills.
How do I split a bill with tip between several people?
Add the tip to the bill first, then divide the total by the number of people. An $84.50 bill with 18% tip split three ways is $33.24 each.
Do I still tip if a service charge is included?
Usually not. Where a service charge or automatic gratuity appears on the bill — common for larger groups — any further tip is entirely optional.