Whether you’re dining at a restaurant, getting a haircut, or ordering food delivery, figuring out how much to tip can be confusing. This free tip calculator guide shows you the exact formula, standard tipping percentages by service type, and how to split the bill evenly among a group — with zero math stress.
Total Bill: Bill Total + Tip Amount
How to Calculate a Tip — Step by Step
Step 1: Decide the Tip Percentage
Standard tipping percentages in the USA:
| Service Quality | Tip % |
|---|---|
| Poor service | 10% |
| Average / OK service | 15% |
| Good service | 18% |
| Great / Excellent service | 20% |
| Outstanding service | 25%+ |
Step 2: Calculate the Tip Amount
Tip = Bill × Tip% Example: $85 bill × 20% = $85 × 0.20 = $17 tip
Step 3: Calculate the Total Bill
Total = Bill + Tip Example: $85 + $17 = $102 total
Tip Calculator Table — Quick Reference
| Bill Amount | 10% Tip | 15% Tip | 18% Tip | 20% Tip | 25% Tip |
|---|---|---|---|---|---|
| $20 | $2.00 | $3.00 | $3.60 | $4.00 | $5.00 |
| $30 | $3.00 | $4.50 | $5.40 | $6.00 | $7.50 |
| $50 | $5.00 | $7.50 | $9.00 | $10.00 | $12.50 |
| $75 | $7.50 | $11.25 | $13.50 | $15.00 | $18.75 |
| $100 | $10.00 | $15.00 | $18.00 | $20.00 | $25.00 |
| $150 | $15.00 | $22.50 | $27.00 | $30.00 | $37.50 |
| $200 | $20.00 | $30.00 | $36.00 | $40.00 | $50.00 |
How to Split the Tip Between a Group
When dining with friends, use this formula to split the bill and tip equally:
Per Person = (Bill Total + Tip Amount) ÷ Number of People Example: $120 bill, 20% tip, 4 people Tip = $120 × 0.20 = $24 Total = $120 + $24 = $144 Per Person = $144 ÷ 4 = $36 each
Split Bill Tip Calculator Table
| Bill | Tip (20%) | Total | Per 2 | Per 3 | Per 4 | Per 5 |
|---|---|---|---|---|---|---|
| $50 | $10 | $60 | $30 | $20 | $15 | $12 |
| $100 | $20 | $120 | $60 | $40 | $30 | $24 |
| $150 | $30 | $180 | $90 | $60 | $45 | $36 |
| $200 | $40 | $240 | $120 | $80 | $60 | $48 |
| $300 | $60 | $360 | $180 | $120 | $90 | $72 |
Tipping Guide by Service Type
| Service Type | Recommended Tip | Notes |
|---|---|---|
| Sit-down Restaurant | 18–20% | Before tax on bill |
| Food Delivery | 10–20% | Min $3–5 for small orders |
| Bar / Bartender | $1–2 per drink or 15–20% | Per drink rule is common |
| Haircut / Salon | 15–20% | Tip the stylist directly |
| Hotel Housekeeping | $2–5 per night | Leave daily, not checkout |
| Taxi / Rideshare | 10–15% | More for help with luggage |
| Pizza Delivery | $3–5 or 15% | Whichever is higher |
| Spa / Massage | 15–20% | Based on service cost |
The Easy Mental Math Trick to Calculate 20% Tip
Step 2: Double that number to get 20%
Example: Bill = $73
10% = $7.30 → 20% = $7.30 × 2 = $14.60 tip
Should You Tip Before or After Tax?
Technically, tipping on the pre-tax amount is standard. However, since the difference is small (a few cents to a dollar), most people tip on the total bill including tax for simplicity. Either way is acceptable.
Pre-tax tip: $90 bill × 20% = $18 tip Post-tax tip: $97 bill (after tax) × 20% = $19.40 tip Difference: ~$1.40 on a $90 bill
Tipping Customs Around the World
| Country | Tipping Custom |
|---|---|
| USA | Expected — 18–20% at restaurants |
| UK | Optional — 10–12.5% if service not included |
| Australia | Not expected — rounding up is fine |
| Japan | Considered rude — do not tip |
| India | 5–10% at restaurants, rounding up common |
| Europe | Round up or leave 5–10% |
| Mexico | 10–15% expected |
Frequently Asked Questions
How do I calculate a 20% tip quickly?
Move the decimal point one place left to get 10%, then double it. Example: Bill = $85 → 10% = $8.50 → 20% = $17.00.
How much do you tip on a $100 restaurant bill?
Standard tip on a $100 bill: 15% = $15, 18% = $18, 20% = $20, 25% = $25. Most people leave $18–$20 for good service.
Is it rude not to tip?
In the US, not tipping is considered very rude since servers rely on tips as their primary income. In other countries like Japan or Australia, tipping is not expected and can even be insulting.
Should I tip on takeout orders?
Tipping on takeout is optional but appreciated. A 10% tip or $1–$3 for standard takeout orders is a good guideline.
How do I split the tip evenly in a group?
Add tip to the total bill, then divide by the number of people. Example: $200 bill + $40 tip (20%) = $240 total ÷ 6 people = $40 per person.
Conclusion
Calculating a tip is simple: multiply your bill by the tip percentage. Use our quick-reference table above for instant results, or remember the 10% trick for fast mental math. Whether you’re at a restaurant, salon, or ordering delivery, a 15–20% tip is the standard in the US. Use our free tip and bill calculators for instant calculations anytime.