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 the common shared-expense problems. Use the bill calculator when one total needs to be divided. Use the itemized splitter when people ordered different things, the rent calculator when bedrooms differ in size, and the fuel splitter for a road trip. Use the trip calculator when several people paid different totals and the group needs to know the final balances and transfers.
Every tool runs from a server-rendered page, 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.
Rent split calculator
Split monthly rent by bedroom size. Part of the rent covers shared space and divides equally; the rest follows each room's floor area. The parts add up to the rent exactly.
Itemized bill splitter
Enter each dish and who shared it. VAT and service follow what each person ordered, so the person who had a salad does not pay for the steak.
Fuel cost splitter
Work out the fuel cost of a road trip from distance, consumption and your local price, add tolls and parking, then split it between the people in the car.
Which tool should you use?
| Situation | Best starting point |
|---|---|
| One restaurant bill | Bill split calculator |
| Rent split by room size | Rent split calculator |
| Each person ordered different dishes | Itemized bill splitter |
| Fuel for a road trip | Fuel cost splitter |
| 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.