$31 Tip: $4.65 (15%), $5.58 (18%), $6.20 (20%) — Instant Calculator
On a $31.00 restaurant bill, a standard 15% tip is $4.65 (total $35.65), an 18% tip is $5.58 (total $36.58), and a 20% tip is $6.20 (total $37.20). All calculations are based on the pre-tax food subtotal.
For a $31 dinner check, servers typically expect $6.20 at 20% — the table-standard choice.
| Tip Rate | Tip Amount | Total with Tip | 2-Way Split (Each) | 4-Way Split (Each) |
|---|---|---|---|---|
| 10% | $3.10 | $34.10 | $17.05 | $8.53 |
| 15% | $4.65 | $35.65 | $17.83 | $8.91 |
| 18% | $5.58 | $36.58 | $18.29 | $9.15 |
| 20% | $6.20 | $37.20 | $18.60 | $9.30 |
| 25% | $7.75 | $38.75 | $19.38 | $9.69 |
What a 20% tip looks like on $31
Total with tip: $37.20 — tip is 17% of what you pay.
Watch out: Tips calculated on the after-tax total
Many POS terminals print suggested tips on the after-tax total. With an average 9% sales tax, a 20% tip on $31 is calculated as $6.76 instead of the correct $6.20 — resulting in $0.56 extra, effectively pushing your rate to 21.8%.
Frequently Asked Questions
How much is a 20% tip on a $31 bill?
A 20% tip on $31 is exactly $6.20, making the total bill $37.20. For 2 people splitting evenly, it is $18.60 each.
How much is an 18% tip on a $31 bill?
An 18% tip on $31 is $5.58, for a total of $36.58.
How much is a 15% tip on a $31 bill?
A 15% tip on $31 is $4.65, making the total $35.65.
How do you split a $31 bill with 20% tip among 4 people?
With a 20% tip ($6.20), the total comes to $37.20. Split among 4 people, each person pays exactly $9.30.
Should I tip before or after tax?
Always tip on the pre-tax amount. A suggested tip calculated on the after-tax total quietly overcharges you by roughly your local sales tax rate.
Is an automatic gratuity or service charge the same as a tip?
Yes. If an 18%–20% automatic gratuity or service charge is already printed on your check, that is the tip. Do not add another tip on the blank line unless you want to double-tip.
How much should I tip for takeout or counter pickup?
Tipping on takeout is 100% optional (0% is standard). Leaving $1–$2 or 5%–10% is generous for large or custom orders, but never mandatory.
What should I do if the receipt prompts 25% or 30%?
Standard restaurant tipping in 2026 remains 18%–20% for good service. High default prompts (25%–30%) are merchant marketing defaults, not required etiquette.
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