BUILDING & PLANNING · FIELD TOOL
Tip = bill × tip percentage. On a bill of 84.50, an 18% tip is 15.21, making 99.71; split three ways, each person pays 33.24. Rounding each share up to 34 makes the tip 17.50. Tipping customs differ: about 15% to 20% is usual in the US and Canada, and around 10% in the UK, Australia and India when service is not already included.
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| Tip | 15.21 |
| Total with tip | 99.71 |
| Tip per person | 5.07 |
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Tip = bill × tip % ÷ 100
Total = bill + tip
Per person = total ÷ number of peopleA bill of 84.50, 18% tip, 3 people:
| Bill | 10% | 15% | 18% | 20% |
|---|---|---|---|---|
| 20 | 2.00 | 3.00 | 3.60 | 4.00 |
| 50 | 5.00 | 7.50 | 9.00 | 10.00 |
| 75 | 7.50 | 11.25 | 13.50 | 15.00 |
| 100 | 10.00 | 15.00 | 18.00 | 20.00 |
| 150 | 15.00 | 22.50 | 27.00 | 30.00 |
Multiply the bill by the percentage and divide by 100. 15% of 60 is 60 × 15 ÷ 100 = 9. A quick way: 10% is the bill with the decimal point moved one place, so 15% is that plus half again.
In the US and Canada 15% to 20% at a restaurant is usual. In the UK, Australia and India around 10% is common, and nothing extra is expected if a service charge is already on the bill.
Add the tip to the bill, then divide by the number of people. 99.71 between 3 is 33.24 each.
Most people tip on the amount before tax, but tipping on the total is also common. Enter whichever amount you prefer.
It adds a little to the tip so everyone pays a whole amount. 33.24 each rounded to 34 adds 2.29 in total.