How to use this tool
Enter the bill before tax, tax amount, tip rate and number of people sharing.
Choose whether the tip uses the pre-tax or post-tax bill, then check rounding and any extra collected.
Tip = selected basis × tip rate; share = (bill + tax + tip)/people
Worked example
$32.00 · per person
Fixed example using the settings below. Monetary examples use USD; dates and times use their stated reference values. This example stays unchanged when you edit your calculation.
Example inputs
- Bill before tax: 100
- Tax amount: 8
- Tip (%): 20
- People: 4
- Tip basis: Before tax
- Round each share: Up to nearest cent
Method illustration: A 100 bill plus 8 tax and 20 pre-tax tip splits to 32 each for four people.
Assumptions and limits
- Each share rounds up so the collected amount covers the bill. Any extra collected is displayed.
Check or report a result
Check the units, selected calculation and assumptions first. Compare the fixed example above with your inputs to identify what changed.
Report a calculation issue with the page address, hypothetical inputs, result displayed and result expected. Do not include passwords, bank details or other private information.