How to use this calculator
Enter the bill, choose a tip percentage and the number of people. Turn on rounding if you want everyone to pay a whole-dollar amount; the calculator shows the effective tip rate after rounding so you know exactly what you are leaving.
Tip on the pre-tax or post-tax amount?
Etiquette guides commonly suggest tipping on the pre-tax subtotal, but many people tip on the total for simplicity. The difference is small: on an $80 meal with 8% tax, an 18% tip is $14.40 before tax and $15.55 after tax. To split a bill with tax and tip itemized, use the split bill calculator.
Quick mental math
- 10%: move the decimal one place left ($64.00 → $6.40).
- 20%: double the 10% figure ($6.40 × 2 = $12.80).
- 15%: 10% plus half of 10% ($6.40 + $3.20 = $9.60).