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Split Expenses Calculator — Divide Bills Fairly in Seconds

A free online calculator to split bills with roommates, friends, couples, and travel groups. Add people, enter expenses, choose even, custom, or ratio-based splits, and see exactly who owes whom.

Step 1

Add people

Enter the names of everyone sharing the expense — roommates, travel companions, dinner guests, or any group.

Step 2

Add expenses

Enter each bill with the total amount and who paid. Add as many expenses as you need.

Step 3

Choose how to split

Split evenly, set custom amounts per person, or use ratios for proportional splits.

Step 4

See who owes whom

The calculator shows the minimum number of payments needed so everyone settles up fairly.

Split expenses

Summary

Expenses0
Total$0.00
Add expense to see who owes whom.

Expenses

$
2 persons

Next page for rent and alternatives

If this calculator is for monthly rent, shared utilities, or comparing options in your current app, these pages often help users move from a single bill to a longer-running plan.

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How the Split Expenses Calculator Works

Splitting bills by hand gets messy fast — especially when different people pay for different things, some expenses are shared unevenly, or the group changes from one purchase to the next. This free split expenses calculator handles all of that automatically.

Start by adding the names of everyone in your group. Then enter each expense: what it was for, how much it cost, and who paid. For each expense you can choose an even split (everyone pays equally), a custom split (you set each person's share), or a ratio-based split (proportional amounts based on ratios you define).

Once all expenses are entered, the calculator tallies every payment and share, then shows you the minimum number of transfers needed to settle all balances. No spreadsheets, no mental math — just a clear list of who pays whom and how much.

Common use cases for splitting expenses

Three ways to split any expense

Even split

The total is divided equally among all participants. Best for shared meals, group activities, or any expense everyone contributes to equally.

Custom split

Set a specific dollar amount for each person. Useful when one person ordered more at dinner or when shares are predetermined.

Ratio split

Assign ratios (like 2:1:1) and the calculator divides proportionally. Great for shared rooms where one person gets the larger space.

Want an app that tracks expenses over time?

This calculator is great for one-time splits. For ongoing groups — roommates, couples, or recurring trips — the EvenX app keeps a running balance and settles up automatically.