Tip on $21 — Calculate 10–25% Tip
A 20% tip on $21 is $4.20, making the total $25.20. At 15% the tip is $3.15; at 25% it is $5.25.
A $21 bill is typical for a mid-range sit-down meal for one or two. An 18–20% tip here runs $3.78 to $4.20.
Check every percentage from 10% to 25% in the table below, or use the calculator.
Tip amounts on $21
| Tip % | Tip amount | Total with tip |
|---|---|---|
| 10% | $2.10 | $23.10 |
| 15% | $3.15 | $24.15 |
| 18% | $3.78 | $24.78 |
| 20% | $4.20 | $25.20 |
| 25% | $5.25 | $26.25 |
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 $21 comes to $4.58 instead of the correct $4.20 — about $0.38 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
$4.20
Total with tip
$25.20
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Reviewed by TipTruth TeamUpdated 2026-08-21