20% Tip on $100 | Tip & Total
A 20% tip on $100 is $20.00, for a total of $120.00.
A $100 bill fits a party of four or a nicer dinner for two; at 20% the tip is $20.00. 20% is the modern default — the percentage most guides, apps, and receipt prompts anchor on.
You can compare this 20% rate against 15%, 18%, 20%, and 25% in the table and calculator below.
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% — your selection | $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.
On other percentages: 15% → $16.35, 18% → $19.62, 25% → $27.25.
Tip Calculator
Tip percent
Tip
$20.00
Total with tip
$120.00
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Reviewed by TipTruth TeamUpdated 2026-08-21