How to calculate a tip
Multiply the bill by the tip percentage and divide by 100. For a $60 bill and a 20% tip: 60 × 20 ÷ 100 = $12, so the total is $72. If four people split it, each pays $18.
Quick mental math
- 10%: move the decimal point one place to the left ($60 → $6).
- 20%: double the 10% ($6 × 2 = $12).
- 15%: 10% plus half of it ($6 + $3 = $9).
- 18%: 20% minus 2% ($12 − $1.20 = $10.80).
How much should you tip in the US?
For table service at a sit-down restaurant, 18% to 20% is standard today, and 15% is the usual minimum for acceptable service. Servers in many states earn a lower "tipped minimum wage", so tips are a big part of their pay. For counter service, coffee or takeout, tipping is optional; $1 or 10% is common. Delivery drivers usually get 15% to 20% or at least $3–5.
Should I tip on the total before or after tax?
Etiquette guides say tipping on the pre-tax amount is fine. Many people tip on the total because it is easier. The difference is small: on a $60 bill with 7% tax it is under $1.