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How to Split a Bill With Tip
Split any restaurant bill fairly by adding the tip first, then dividing by the number of people. Learn the formula, tipping norms, and rounding tips.
The Formula Behind a Fair Split
Splitting a bill is simple once you know the order of operations. The total each person owes is the bill plus the tip, divided by the number of people. In short: (bill + tip) divided by people.
The key detail is that the tip is calculated on the entered bill amount, before dividing. If you tip 20 percent on a 100 dollar bill, that is 20 dollars of tip, making a 120 dollar total. Split among four people, each pays 30 dollars. Dividing first and tipping second can produce small errors and confusion, so add the tip up front.
How Much to Tip
In the United States, table service at a sit-down restaurant typically warrants an 18 to 20 percent tip. Exceptional service might earn more, and counter or takeout service often follows different norms.
Tipping customs vary widely by country, so the percentage that feels standard in one place may be generous or unusual in another. When in doubt for US table service, 18 to 20 percent is a safe and common range. The calculator lets you set the percentage so you can match the situation.
Splitting a Bill Step by Step
The Bill Splitter handles the arithmetic and keeps everyone honest. You enter the bill, choose a tip, and set the headcount.
- 1Open the Bill Splitter and enter the pre-tip bill amount.
- 2Set the tip percentage, using 18 to 20 percent for US table service.
- 3Enter the number of people sharing the bill.
- 4Read the total per person, which is the bill plus tip divided by the headcount.
- 5Check the total tip and grand total so everyone sees the full picture.
- 6Round up the per-person amount if you want to leave a little extra.
Handling Rounding and Odd Splits
Even splits rarely land on clean numbers. If the per-person amount comes out to 23.47 dollars, most groups round up to 24 dollars each, which quietly increases the tip and keeps things simple.
For uneven situations, such as one person who ordered much more, some groups adjust individual shares rather than splitting evenly. An even split is the fastest and fairest default when everyone ate roughly the same, and rounding up covers the small gaps.
Frequently asked questions
Is the tip calculated before or after splitting?
Before. Add the tip to the bill first, then divide the total by the number of people. The tip is based on the entered bill amount, not on each person share.
How much should I tip at a restaurant?
For US table service, 18 to 20 percent is standard. Adjust for exceptional or poor service, and remember that tipping norms differ from country to country.
Do I tip on the amount before or after tax?
The calculator applies the tip to the bill amount you enter. Many people tip on the pre-tax subtotal, so enter that figure if you want the tip based on food and drink alone.
Tools mentioned in this guide
Bill Splitter
Split a bill with tip evenly between any number of people.
Calculators
Tip Calculator
Calculate the tip and split the bill — with clean per-person rounding.
Calculators
Percentage Calculator
What is X% of Y, percentage change, and 'X is what % of Y' — solved live.
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Sales Tax Calculator
Add sales tax to a price or back it out of a total — with state base rates.
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