Tip Calculator: Tip Amount & Split the Bill
Work out the tip in a second and split the total fairly — with a quick guide to how much to tip in the US.
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How to Calculate a Tip
Per person = (Bill + Tip) ÷ Number of people
Mental math: move the decimal one place left for 10% ($85 → $8.50), double it for 20% ($17), or add half again for 15% ($12.75).
| Bill | 15% | 18% | 20% | 25% |
|---|---|---|---|---|
| $20.00 | $3.00 | $3.60 | $4.00 | $5.00 |
| $50.00 | $7.50 | $9.00 | $10.00 | $12.50 |
| $85.00 | $12.75 | $15.30 | $17.00 | $21.25 |
| $120.00 | $18.00 | $21.60 | $24.00 | $30.00 |
| $200.00 | $30.00 | $36.00 | $40.00 | $50.00 |
How Much to Tip in the US
| Service | Typical tip |
|---|---|
| Sit-down restaurant | 15%–20% of the pre-tax bill |
| Buffet | 10% |
| Bartender | $1–$2 per drink or 15%–20% of the tab |
| Food delivery | 15%–20%, at least $3–$5 |
| Takeout / counter service | Optional, 0%–10% |
| Taxi or rideshare | 15%–20% |
| Hair stylist or barber | 15%–20% |
| Hotel housekeeping | $2–$5 per night |
These are common customs, not rules — tip more for great service, and check whether a service charge or automatic gratuity is already on the bill (common for groups of six or more).
Frequently Asked Questions
Should I tip on the total before or after tax?
Customarily on the pre-tax amount, though many people tip on the total for simplicity. The difference is small.
How much is a 20% tip on $100?
$20, for a total of $120.
Do I need to tip if there is a service charge?
Not usually. An automatic gratuity already covers the tip; you can add more for exceptional service.
How do I split a bill with a tip?
Add the tip to the bill and divide by the number of people. Use the round-up option above so everyone pays whole dollars.