What is the Expense Splitter Calculator?
The Expense Splitter Calculator helps you instantly divide bills or expenses among a group. Whether it’s splitting rent with roommates, managing group trip costs, or dividing a restaurant bill, this tool tells everyone exactly what they owe — supporting equal and custom shares.
How to use this expense splitter
- Enter the total amount to split.
- Add all people involved. You can use the comma box or add new rows for long groups.
- (Optional) For custom splits, adjust each person's share or set exact amounts.
- Click Calculate Who Owes What to get detailed results.
- Share or copy results easily with built-in controls.
Example: Splitting a $120 dinner among Alice, Bob, and Carol, with Carol only paying $40 (the rest splits equally), you would:
- Enter 120 as the total
- Enter Alice, Bob, Carol as people
- Set Carol's share to 40, Alice and Bob will split the remainder
Example Output
- Alice owes $40.00
- Bob owes $40.00
- Carol owes $40.00
Notes & Validation
- If custom shares are chosen, the sum must not exceed the total amount.
- Support for cents (decimals).
- Error messages will guide you on data issues (no negative shares, etc.).
- You can reset the form at any time.
FAQ
How does this handle unequal shares?
If you enter specific shares, the total remaining amount is evenly split among those without custom shares.
Can someone 'opt out' of split?
Delete their row or set their share to zero, and their cost will be $0.00.
Is my information saved?
No data is saved — all calculation stays on your device.
Will this work on mobile?
Absolutely — the tool is responsive and tap-friendly.