When to use this calculator
Split a bill and optional tip equally between a group. Shares are equal; rounding to currency precision may leave a small remainder.
Explore the shared bills & household costs calculators for other questions in this topic. For a related calculation, use the Subscription Cost Per Use Calculator: Estimate cost per use of a subscription during one billing period.
PUTTING IT INTO PRACTICE
Split Bill: a worked example
The values below are an illustrative example, not a recommendation. Replace them with measurements or assumptions that match your question.
| Input | Example value |
|---|---|
| Bill | 120 |
| Tip (%) | 10 |
| People (integer) | 4 |
| Result | 33 per person |
- Check the input labels and enter the example values above.
- Apply the relationship: Each share = bill × (1 + tip/100) ÷ people.
- The result is 33 per person, rounded for display.
How to interpret your result
Shares are equal; rounding to currency precision may leave a small remainder.
Agree the splitting rule before calculating: equal shares and income-based shares reflect different choices. Keep expenses on the same billing period and account for currency rounding when dividing a bill.
Frequently asked questions
Will rounded individual shares always add back to the bill?
Not always. Currency rounding can leave a small remainder that the group needs to allocate.
How do I use the split bill calculator?
Enter bill, tip (%), people (integer). The result updates automatically. Use the units shown beside each input; the example values illustrate the method.
Which formula does this calculator use?
Each share = bill × (1 + tip/100) ÷ people.
What should I check before using the result?
Shares are equal; rounding to currency precision may leave a small remainder.
How are results rounded?
Scalar numbers display up to six decimal places, with scientific notation for very large or small values. Text, fraction, date and schedule outputs use the format described on the tool. Intermediate calculations use JavaScript floating-point arithmetic. Keep sensible precision for your measurements.
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