Should I tip on the pre-tax or post-tax amount?

There's no strict rule. Most etiquette guides suggest tipping on the pre-tax amount, but tipping on the total (including tax) is also widely practiced and appreciated. The difference is usually small — on a $100 bill with $10 tax, an 18% tip is $18.00 on pre-tax vs. $19.80 on the full amount.

What tip percentage is appropriate?

In the US: 15% is generally the minimum for acceptable service, 18% is standard for good service, and 20–25% is for excellent service. For coffee shops and counter service, 10–15% is typical. Tipping customs vary significantly by country — in Japan, tipping is not customary; in most of Europe, rounding up is standard rather than a set percentage.

What if a service charge is already included?

Check the bill before tipping. A line labeled 'service charge', 'gratuity', or 'service fee' (typically 15–20%) means the tip is already included. Adding another tip on top is optional and at your discretion.

How do I handle unequal splits?

This calculator splits the bill equally. For unequal splits, note what each person ordered, add a proportional share of the tip, and calculate individual totals. Some payment apps like Venmo or Splitwise handle this automatically.

Is there a quick way to calculate a 20% tip in my head?

Move the decimal one place to the left to get 10%, then double it. For a $45 bill: 10% = $4.50, doubled = $9.00 (which is 20%). For 15%, take 10% ($4.50) and add half of that ($2.25) to get $6.75.

Tip Calculator

Enter the bill total, choose a tip percentage, and split between as many people as needed. The calculator shows the tip amount, the total with tip, and what each person pays.

Tip Calculator

How it works

The tip amount is calculated as a percentage of the pre-tax bill. Multiply the bill by the tip percentage (as a decimal) to get the tip.

Add the tip to the original bill to get the total. Divide the total by the number of people for the per-person amount.

Tipping customs vary by country and service type. In the US, 15–20% is typical for restaurant service. For exceptional service, 20–25% is common.

Formula

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

Multiply the bill by the tip percentage divided by 100 to get the tip amount. Add the tip to the bill for the total. Divide by the number of people for each person's share.

Example: Dinner for 4 people

A restaurant bill of $120 with a 18% tip, split between 4 people.

Bill amount	$120.00
Tip percentage	18%
Number of people	4

Result: Tip: $21.60. Total: $141.60. Each person pays: $35.40 (including $5.40 tip each).

Assumptions

The tip is calculated on the pre-tax amount you enter. Some people prefer to tip on the pre-tax total, others on the total including tax. Either is acceptable.
The bill split is equal between all people. If some people ordered more than others, you'll need to calculate individual shares separately.
No service charge is assumed to be already included. Check your bill — some restaurants automatically add a service charge for large groups.

Frequently asked questions

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Tip Calculator

Tip Calculator

How it works

Formula

Example: Dinner for 4 people

Assumptions

Frequently asked questions

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