Tip on $100 — Calculate 10–25% Tip
A 20% tip on $100 is $20.00, making the total $120.00. At 15% the tip is $15.00; at 25% it is $25.00.
Group checks in the $100 area often trigger automatic gratuity — if not, $20.00 at 20% is the fair range for good service.
Check every percentage from 10% to 25% in the table below, or use the calculator.
Tip amounts on $100
| Tip % | Tip amount | Total with tip |
|---|---|---|
| 10% | $10.00 | $110.00 |
| 15% | $15.00 | $115.00 |
| 18% | $18.00 | $118.00 |
| 20% | $20.00 | $120.00 |
| 25% | $25.00 | $125.00 |
Watch out: tips calculated after tax
Many receipts print their suggested tip on the after-tax total. With a 9% sales tax, a 20% tip on $100 comes to $21.80 instead of the correct $20.00 — about $1.80 more, which is really 21.8% of your pre-tax bill.
You can check any percentage (10–25%) in the table above or use the calculator.
Tip Calculator
Tip percent
Tip
$20.00
Total with tip
$120.00
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Reviewed by TipTruth TeamUpdated 2026-08-21