Free tool
Split Expense Calculator
Use this split expense calculator to divide shared bills, add who paid, choose who was included, and see who owes whom.
It works for dinners, groceries, rent, trips, roommate bills, couple expenses, household purchases, and other one-time shared costs.
This calculator runs in your browser. The values you enter are not sent anywhere.
Calculate who owes whom
Add people, enter expenses, choose who paid, and select who should share each expense. The calculator will combine everything into a simple settlement.
People
Expenses
This calculator runs in your browser. The values you enter are not sent anywhere.
What this split expense calculator does
This calculator helps you divide one or more shared expenses between people and see the simplest way to settle up. Add who paid, who should be included in each expense, and the calculator will show each person’s fair share and who owes whom.
Use it for:
- dinners and drinks
- groceries
- rent and utilities
- trips
- household purchases
- couple expenses
- roommate bills
- family reimbursements
How to split expenses
- Add everyone involved.
- Add each expense amount.
- Choose who paid for each expense.
- Select who should share each expense.
- Check the settlement to see who owes whom.
For simple situations, this may be enough. For ongoing shared costs, it is usually easier to keep a running balance instead of recalculating from scratch every time.
Example: splitting groceries, dinner, and a taxi
Alex, Mia, and Sam are sharing some costs.
| Expense | Paid by | Split between |
|---|---|---|
| Groceries — $90 | Alex | Alex, Mia, Sam |
| Dinner — $60 | Mia | Alex, Mia, Sam |
| Taxi — $30 | Sam | Alex, Sam |
The calculator adds what each person paid, calculates each person’s fair share for the expenses they were included in, and then simplifies the result into the smallest practical set of repayments. Result: Sam owes Alex $25. Sam owes Mia $10.
Equal splits and selective splits
An equal split works when everyone included in an expense should pay the same share. A selective split is useful when only some people were part of a specific cost.
If three roommates share groceries, include all three people. If only two people shared a taxi, include only those two people for that taxi expense.
This calculator currently uses equal splitting for each selected expense. For custom percentages, uneven rent arrangements, partial repayments, recurring expenses, and long-term balances, You Owe Me can help you keep the ongoing record manually and clearly.
When a calculator is not enough
A calculator is useful when you need to settle one situation. But real shared money often keeps changing. Someone pays for groceries, someone else covers rent, a partial repayment happens later, and another recurring cost appears next month.
That is when a running balance is easier than a one-time calculation.
You Owe Me is built for ongoing money between people. Instead of only calculating one split, it helps you keep a clear history of expenses, repayments, reminders, and follow-up messages.
With You Owe Me, you can:
- track shared expenses over time
- see who owes whom at any moment
- record partial repayments
- add recurring expenses
- send clearer repayment updates
- share a statement when someone needs context
Related guides and tools
Split expense calculator FAQ
What is a split expense calculator?
A split expense calculator divides shared costs between people and shows who owes whom after accounting for who paid and who was included in each expense.
Can I use this for more than one expense?
Yes. Add each expense separately, choose who paid, and select the people who should share that cost. The calculator combines everything into one settlement result.
Can I use this for roommates?
Yes. It works for rent, utilities, groceries, household items, and other shared roommate costs. For recurring bills or long-term household balances, an app like You Owe Me is easier than recalculating every month.
Can I use this for couples?
Yes. Couples can use it for groceries, rent, travel, subscriptions, and everyday shared spending. It is useful when one person paid upfront and both people want a clear result.
What if one person should not be included in an expense?
Only select the people who should share that specific expense. For example, if three people are on a trip but only two shared a taxi, include only those two people for that taxi expense.
What is the difference between this calculator and You Owe Me?
The calculator is for quick one-time splits. You Owe Me is for ongoing balances, repayment history, reminders, recurring expenses, follow-up messages, and situations where money between people continues over time.
Does the calculator save my data?
No. The calculator runs in your browser and is designed for quick calculations. The values you enter are not sent anywhere or saved to an account.
Need to track shared money over time?
Use the calculator for quick splits. Use You Owe Me when you need a lasting record of shared expenses, repayments, reminders, and money conversations.
Updated