How to calculate a tip
Tip = bill × (tip % ÷ 100)Each person = (bill + tip) ÷ number of people
A fast way to tip 20% in your head: find 10% by moving the decimal point one place left, then double it. On a $64 bill, 10% is $6.40, so 20% is $12.80. For 15%, add half of the 10% figure: $6.40 + $3.20 = $9.60.
Worked example
Three friends share an $86.40 dinner and leave 20%. The tip is $17.28 and the total is $103.68, so each person pays $34.56. Choose "Round each share" and everyone pays $35.00, which leaves a slightly larger tip.
Typical U.S. tipping amounts
| Service | Common tip |
|---|---|
| Sit-down restaurant | 15–20%, 20% or more for great service |
| Bartender | $1–2 per drink, or 15–20% of the tab |
| Food delivery | 15–20%, at least a few dollars |
| Taxi or rideshare | 15–20% |
| Hair stylist or barber | 15–20% |
| Hotel housekeeping | $2–5 per night |
Customs vary by region and change over time. Outside the U.S., service is often included in the price and tips are smaller or not expected.