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Tip Calculator

Tipping shouldn't require mental math after a long meal. Enter the bill, pick a tip percentage, and — if the table is splitting it — the number of people. You get the tip, the total, and exactly what each person owes. There's also a round-the-tip-to-a-dollar shortcut for when you just want to hand over a clean number.

Enter the Bill

Pre-tip, including tax if you like
15 / 18 / 20 are common
1 = no split

The Tip Formula

The tip is simply the bill times the rate:

Tip = Bill × (Tip% ÷ 100)   |   Total = Bill + Tip   |   Per Person = Total ÷ People

A tip is just a percentage problem — the same math behind percentage calculations and sales tax. The only wrinkle at a table is the split: always add the tip to the bill first, then divide, so nobody underpays the server.

Worked Example: An $84.50 Dinner for Four

Four friends finish a meal costing $84.50 and agree on an 18% tip. The tip is 84.50 × 0.18 = $15.21, for a total of $99.71. Split four ways that's $24.93 each. Prefer a clean number? Rounding the tip to $15 makes the total $99.50 — basically the same, and easier to settle in cash.

Tip Percentages Cheat Sheet

U.S. sit-down restaurants: 15% standard, 18% good, 20%+ excellent. Coffee-shop counter service is often 10–15% or rounded up. For large parties, a 18–20% auto-gratuity is frequently added — if it's already on the receipt, don't tip again. Delivery typically runs 15–20%, and tipping on the subtotal (before promotions) is the fairest norm for drivers.

Frequently Asked Questions

How do I calculate a tip from a percentage?

Bill × (rate ÷ 100). On $84.50 at 20% that's $16.90; total $101.40. The calculator also splits it per person.

What is a normal restaurant tip?

15% standard, 18% good, 20%+ excellent in the U.S. Six-plus guests often get an auto 18–20% gratuity — check first.

Pre-tax or post-tax tip?

Either works; pre-tax is slightly lower and common. This tool uses whatever total you enter.

How do I split the tip?

Add tip to bill, then divide by people. $99.71 ÷ 4 = $24.93 each.

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BuildFormulas Everyday Math Team
Practical Calculation Guides

The BuildFormulas Everyday Math Team builds approachable calculators for real-life money and number problems, from tipping to percentages.

Reviewed by BuildFormulas Editorial Review Board, Editorial Review
Last updated: August 2026