Tip Calculator
Work out the tip and the total on any bill, split it between people, leave tax out of the tip, and round up. Works in any currency.
Example loaded: a bill of 86.40 with an 18% tip split three ways. Change the numbers and select Calculate.
Your bill
Your results
Quick answer
To find a tip, multiply the bill by the tip percentage. A 15% tip on 50 is 50 × 0.15 = 7.50, so the total is 57.50. For a quick estimate, take 10% by moving the decimal point one place, then add half of that for 15% or double it for 20%.
Enter the bill and a tip percent above, add the number of people to split it, and the calculator shows the tip, the total and each person’s share.
How to calculate a tip
- Write down the bill before the tip, for example 86.40.
- Turn the tip percent into a decimal: 18% = 0.18.
- Multiply: 86.40 × 0.18 = 15.55. That is the tip.
- Add it to the bill: 86.40 + 15.55 = 101.95.
- To split between 3 people, divide the total: 101.95 ÷ 3 = 33.98 each.
Tip in your head
- 10%: move the decimal point one place left. 10% of 86.40 is 8.64.
- 15%: take 10%, then add half of it. 8.64 + 4.32 = 12.96.
- 20%: double the 10%. 8.64 × 2 = 17.28.
Find the tip percent you left
Choose Find tip percent, enter the bill and the total you paid. The tip is the total paid minus the bill, divided by the bill.
Tip before or after tax
Many people tip on the bill before tax, because the tax is not part of the service. Others tip on the total including tax, which gives a slightly bigger tip. Both are common, and neither is wrong. To tip on the pre-tax amount, type the tax in the optional tax box and the calculator leaves it out of the tip base.
Example: a bill of 100 that includes 8 of tax, with a 20% tip. Tip on the full 100 is 20.00. Tip on the pre-tax 92 is 18.40.
How much to tip
These are typical ranges in the United States. Customs change by place, and a service charge may already be on your bill, so check it first.
| Service | Typical tip |
|---|---|
| Restaurant, sit-down | 15% to 20% |
| Bar or bartender | $1 to $2 per drink, or 15% to 20% |
| Food delivery | 15% to 20%, at least $3 to $5 |
| Taxi or ride share | 10% to 20% |
| Hair salon or barber | 15% to 20% |
| Hotel housekeeping | $2 to $5 per night |
| Tour guide | 10% to 20%, or $5 to $10 per person |
| Coffee shop or counter service | Optional, $1 or 10% |
Outside the United States, tipping is often smaller or not expected. In Japan and parts of East Asia it can be unwelcome, and in many European countries a service charge is already included, so a small round-up is enough. Check local customs before you travel.
Worked examples
- Dinner for two: bill 64.00, tip 20%. Tip = 12.80, total = 76.80, or 38.40 each.
- Group of four: bill 180.00, tip 18%. Tip = 32.40, total = 212.40, or 53.10 each.
- Tip on pre-tax: bill 100 with 8 tax, tip 20%. Tip = 92 × 0.20 = 18.40.
- Round up: bill 57.30, tip 18% is 10.31. Rounding the total up to 68 makes the tip 10.70, an effective 18.67%.
- Tip left: bill 80, paid 96. The tip is 16, which is 20% of 80.
Select Load example above to try one in the calculator.
Frequently asked questions
How do I calculate a tip?
Multiply the bill by the tip percentage. For a 15% tip on 50, that is 50 × 0.15 = 7.50. Add it to the bill to get the total of 57.50.
How do I calculate a 15%, 18% or 20% tip in my head?
Find 10% by moving the decimal one place left. For 15% add half of that, and for 20% double it. For 18%, take 20% and subtract a little.
How much should I tip at a restaurant?
In the United States 15% to 20% is typical for good service at a sit-down restaurant. Check whether a service charge is already on the bill.
Should I tip before or after tax?
Either is acceptable. Tipping on the pre-tax amount is common and slightly smaller. Add the tax in the optional box to leave it out of the tip.
How do I split a bill with a tip?
Add the tip to the bill, then divide the total by the number of people. The calculator also shows the tip per person.
Does the calculator work in other currencies?
Yes. It uses plain numbers, so you can use dollars, pounds, euros, rupees or any other currency.
How do I find what percent tip I left?
Choose Find tip percent, enter the bill and the total you paid. The calculator divides the tip by the bill.
Why would I round the total up?
Rounding makes the amount easier to pay in cash, and it slightly raises the tip. The calculator shows the effective tip percent after rounding.
Are tips taxable?
In many countries, including the United States, tips count as income for the person who receives them. This calculator does not work out tax, and this page is not tax advice.
Is my data stored?
No. Everything is calculated in your browser and nothing is sent anywhere.
About this calculator
Written by Umar Khan. Tips are calculated as the tip base times the tip percent, and the total is the bill plus the tip. Typical tip ranges are general guides and customs vary. Your numbers stay in your browser. Last updated November 10, 2026. Questions or corrections: [email protected].
Written by Umar Khan
Umar Khan is a PhD student in engineering at NTNU, the Norwegian University of Science and Technology, in Norway. Every formula and worked example on this page is shown in full so you can check each result yourself. Corrections are welcome at [email protected].
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For information only, not professional advice.
Written by Umar Khan. Last updated: November 10, 2026.