Tip on $31 — Calculate 10–25% Tip
A 20% tip on $31 is $6.20, making the total $37.20. At 15% the tip is $4.65; at 25% it is $7.75.
For a $31 dinner check, servers typically expect $6.20 at 20% — the table-standard choice.
Check every percentage from 10% to 25% in the table below, or use the calculator.
Tip amounts on $31
| Tip % | Tip amount | Total with tip |
|---|---|---|
| 10% | $3.10 | $34.10 |
| 15% | $4.65 | $35.65 |
| 18% | $5.58 | $36.58 |
| 20% | $6.20 | $37.20 |
| 25% | $7.75 | $38.75 |
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 $31 comes to $6.76 instead of the correct $6.20 — about $0.56 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
$6.20
Total with tip
$37.20
How much should you tip?
Reviewed by TipTruth TeamUpdated 2026-08-21