Bill split calculator
Divide one amount equally across 2 to 100 people, or assign weighted shares for different rooms, usage or attendance. The largest-remainder rule distributes rounding units deterministically.
Free expense splitting calculators
These calculators solve two different shared-expense problems. Use the bill calculator when one total needs to be divided. Use the trip calculator when several people paid different totals and the group needs to know the final balances and transfers.
Both tools run from server-rendered pages, work without an account, and keep the calculation in integer minor units. That matters when an amount does not divide evenly: the result must preserve the original total instead of silently losing or inventing the final cent or baisa.
Trip cost splitter
Enter how much each person paid in a single currency. The tool calculates equal shares, net balances and a reduced plan that clears the group without repaying every receipt separately.
Which tool should you use?
| Situation | Best starting point |
|---|---|
| One restaurant bill | Bill split calculator |
| Rent split by room size | Weighted bill split |
| Several people paid during a trip | Trip cost splitter |
| Different people joined different expenses | Trip expense guide |
| Purchases use several currencies | Multi-currency guide |
| The ledger is ready for payment | Settlement guide |
Know what the calculators assume
- The bill calculator treats the entered amount as one complete total. It does not add tax, tips, discounts or fees unless you include them.
- The trip calculator assumes the entered paid amounts belong to one currency and that everyone has an equal final share.
- Neither tool stores a ledger, retrieves exchange rates or moves money.
- A calculator cannot resolve a disputed participant list. Agree who shared each expense before calculating it.
- For multi-currency groups, convert each record by a documented method first, then calculate balances in one base currency.
Need an ongoing group record?
Splitty is the shared ledger behind these public tools. It records contributions and expenses, updates balances for the whole group, supports multiple currencies, and creates settlement instructions from the reconciled positions. Start with the calculators for a one-off answer, or read the full expense splitting guides when the rules need to be agreed before the arithmetic begins.