Split Bill Calculator
Track group expenses, split fairly, and instantly see who pays whom.
Add the people in your group, log every expense as it happens, and let the split bill calculator simplify all the IOUs into the smallest possible set of transfers. Perfect for trips, roommates, dinners, and group projects.
People
Add everyone splitting expenses.
Expenses
Log every shared cost. Pick who paid and who shares it.
No expenses yet. Add one above.
Settlement
Fewest possible transfers to settle everyone up.
Balances
Who pays whom
How the split bill calculator works
For each person we compute a net balance: total they paid minus their share of every expense. People with a positive balance are owed money; people with a negative balance owe money. A greedy debt-simplification algorithm then matches the largest debtor with the largest creditor until everyone is at zero — giving you the minimum number of transfers.
FAQ
Is my data saved anywhere?
Your people and expenses are stored only in your browser (localStorage). We never send anything to a server. Clear your browser data and it is gone.
Can I split an expense unevenly?
Yes. When adding an expense, untick "Everyone" and select only the people who should share that specific cost.
Why does it suggest fewer transfers than I expected?
The calculator simplifies the debts. Instead of A → B → C, it cancels out indirect IOUs so each person makes the fewest payments possible.
We do not store any of your data.