You have finished a great meal, the check arrives, and suddenly you are doing mental math under pressure. Is 15% enough? Should I tip on the pre-tax total? What if the service was bad? Tipping does not have to be stressful. This guide gives you exact percentages for every situation, quick mental math tricks, and a free calculator so you never guess again.
The Standard Tipping Rules (Quick Reference)
| Service | Standard Tip | Good Service | Exceptional Service |
|---|---|---|---|
| Restaurant (sit-down) | 15% | 18–20% | 20–25% |
| Restaurant (takeout) | $0–10% | 10% | 10–15% |
| Food delivery | 15% | 18–20% | 20%+ |
| Bartender (per drink) | $1–2 | $2–3 | 20% of tab |
| Haircut / salon | 15% | 18–20% | 20–25% |
| Taxi / rideshare | 15% | 18–20% | 20%+ |
| Hotel housekeeping | $2–5/night | $5/night | $5–10/night |
| Valet parking | $2–5 | $5 | $5–10 |
| Pizza delivery | $3–5 | $5 | 15–20% |
How to Calculate a Tip in 3 Seconds (Mental Math)
Here is the fastest way to calculate any tip percentage without a calculator:
For 10%
Move the decimal point one place to the left. A $48.50 bill becomes $4.85.
For 20%
Calculate 10%, then double it. $48.50 → $4.85 → $9.70.
For 15%
Calculate 10%, then add half of that. $48.50 → $4.85 + $2.43 = $7.28.
For 18%
Calculate 20%, then subtract 10% of the 10% amount. $48.50 → $9.70 − $0.49 = $9.21.
💰 Calculate Tips Instantly
Enter your bill amount, choose your tip percentage, and split among any number of people. No mental math required.
Use the Free Tip Calculator →Should You Tip on Pre-Tax or Post-Tax?
Etiquette experts agree: tip on the pre-tax amount. The tax goes to the government, not the staff. However, on smaller bills the difference is negligible — about $1–2. Many people simply tip on the post-tax total for convenience, which is also acceptable.
Example: $50 pre-tax bill with 8% tax = $54 total.
- 20% on pre-tax: $10.00
- 20% on post-tax: $10.80
- Difference: $0.80
How to Handle Bad Service
Not every meal deserves 20%. Here is how to adjust without being unfair:
- Minor issues (slow kitchen, crowded night): Stick to 15–18%. The server may not be at fault.
- Moderate issues (rude behavior, wrong orders): Tip 10%. Consider speaking to a manager.
- Severe issues (ignored completely, hostile service): Tip 0% and speak to a manager. But never skip tipping for kitchen delays.
Remember: in the US, servers often earn below minimum wage and rely on tips. Only withhold a tip for service-related issues, not food quality.
Tipping Around the World
| Country | Restaurant Tip | Notes |
|---|---|---|
| United States | 15–20% | Expected; staff rely on tips |
| United Kingdom | 10–12.5% | Often included as "service charge" |
| Canada | 15–20% | Similar to US |
| Australia | Not expected | Staff earn living wages |
| Japan | Not expected | Can be seen as rude |
| France | Included | "Service compris" means tip is built in |
| Mexico | 10–15% | Appreciated but not mandatory |
| Dubai / UAE | 10% | Often added automatically |
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How to Split a Bill and Tip with a Group
Group dining adds complexity. Here is the fairest approach:
- Decide the tip first. Agree on a percentage before calculating shares.
- Calculate total with tip. Bill × (1 + tip%) = total.
- Divide equally (easiest) or by item (fairest).
- Round up. Each person pays a clean number; leftover covers tax rounding.
Example: $120 bill, 4 people, 18% tip.
- Total with tip: $120 × 1.18 = $141.60
- Per person: $141.60 ÷ 4 = $35.40
- Round up: Each pays $36 ($144 total, $2.40 extra tip)
Key Takeaways
- Restaurant standard: 15–20% of the pre-tax bill.
- Quick 20% tip: Move decimal left (10%), then double it.
- Delivery: 15–20% with a $3–5 minimum.
- Takeout: 10% is appreciated but optional.
- Splitting bills: Agree on tip % first, then divide total.
- Bad service: Reduce tip to 10%, but speak to a manager for serious issues.
💰 Never Guess a Tip Again
Enter your bill, pick a percentage, and split with friends instantly. Our free Tip Calculator handles the math in one click.
Try the Free Tip Calculator →Frequently Asked Questions
The standard restaurant tip in the US is 15–20% of the pre-tax bill. For good service, tip 18–20%. For exceptional service, 20% or more. For poor service, 10–15% is acceptable, or speak to a manager.
To calculate 20% quickly: move the decimal one place left (10%), then double it. For a $45 bill, 10% is $4.50, so 20% is $9. For 15%, take 10% and add half of it: $4.50 + $2.25 = $6.75.
Etiquette experts recommend tipping on the pre-tax amount. However, many people tip on the post-tax total for simplicity. The difference is usually small — about $1–2 on a typical bill.
For takeout, a 10% tip is appreciated but optional. For delivery, tip 15–20% of the order total, with a minimum of $3–5. Bad weather, long distances, or large orders warrant a higher tip.
Add the total bill plus tip, then divide by the number of people. Or use a tip calculator: enter the bill amount, tip percentage, and number of people to get each person's share instantly.