Quick answer
How do you calculate a tip and split the bill?
Multiply the bill by the tip percentage, add it to the bill, and divide by the number of people. An $84.50 bill with an 18% tip comes to $99.71, so each of three people pays about $33.24. Rounding up each share to $34 makes the total $102.
- Tip = bill × tip % ÷ 100
- US norm: 15–20% of the pre-tax bill at restaurants
- Per person = (bill + tip) ÷ people
How much should you tip?
- Sit-down restaurant (US): 15–20%, 18–20% for good service
- Food delivery (US): 15–20%, with a few dollars minimum
- Bar (US): about $1–2 a drink or 15–20% of the tab
- India: optional; around 5–10% if no service charge is added
Customs vary between cities and change over time, so treat these as a guide rather than a rule.
How is a 15%, 18% or 20% tip calculated?
Multiply the bill by the tip percentage and divide by 100. Then add the tip to the bill for your total.
On a $150 bill, the common tips work out like this:
| Tip | Tip amount | Total |
|---|---|---|
| 15% | $22.50 | $172.50 |
| 18% | $27.00 | $177.00 |
| 20% | $30.00 | $180.00 |
How do you split the bill between friends?
Enter the bill total, pick a tip and set how many people are paying. The tip calculator adds the tip and divides the total evenly.
Say four friends have a dinner bill of $129.90, which includes $9.90 of tax. If you enter $9.90 in the “Tax included in bill” box, the 20% tip is worked out on the $120 pre-tax amount, so it is $24. The total is $153.90 and each person pays about $38.48. Tick “Round each person’s share up” and each share becomes $39, the total $156, and the tip rises to $26.10.
The same steps work in rupees. A ₹2,400 dinner with a 10% tip split three ways is ₹880 each.
Frequently asked questions
How much should I tip in the US?
At sit-down restaurants in the US, 15% to 20% of the pre-tax bill is customary, with 18–20% common for good service. For counter service a tip is optional.
How do I calculate an 18% tip?
Multiply the bill by 0.18. On an $84.50 bill, an 18% tip is $15.21, making the total $99.71.
Should I tip on the bill before or after tax?
Etiquette guides usually suggest tipping on the pre-tax amount. Enter the tax shown on your bill and the calculator will tip on the amount before tax.
Do I need to tip in India?
Tipping is optional in India. Many restaurants add a service charge, which by consumer guidelines is voluntary; if it’s on the bill, an extra tip isn’t expected.
How much is a 20% tip on $50?
$10, making the total $60. To find 20% quickly, take 10% by moving the decimal point one place left, then double it.
What does the round-up option do?
It rounds each person’s share up to the next whole amount, so nobody deals with coins. On an $84.50 bill with an 18% tip split three ways, each share goes from $33.24 to $34 and the tip becomes $17.50.