Free rent split calculator

Split rent fairly, in seconds.

Split rent between roommates equally, by room size, or by income. No sign-up, nothing to download.

Split by

How to split rent fairly.

Equal

Everyone pays the same. It works when the bedrooms are close in size and everyone earns about the same. It is the simplest, and it starts arguments the moment one room is clearly better.

By room size

Divide each person's square footage by the total across all the bedrooms, then multiply by the rent. A room that is 25% of the bedroom space pays 25% of the rent. Some groups count the shared space equally and only weight the bedrooms.

By income

Divide each person's monthly income by everyone's combined income, then multiply by the rent. Someone who earns 60% of the household income pays 60% of the rent. Good when incomes are far apart.

Whichever way you pick, agree on it before anyone signs the lease, and write the numbers down.

The things people ask.

How do you split rent fairly between roommates?

Split it equally if the rooms are about the same, by room size if the bedrooms differ a lot, or by income if one roommate earns much more than another. Agree on the method before anyone signs the lease.

How do you split rent by room size?

Divide each person's room square footage by the total of all the bedrooms, then multiply by the rent. A room that is 25% of the bedroom space pays 25% of the rent.

How do you split rent by income?

Divide each person's monthly income by the combined income of everyone, then multiply by the rent. Someone who earns 60% of the household income pays 60% of the rent.

How do you get roommates to pay their share on time?

Take the decision out of each month. With Splice you set up a Circle for your household and each roommate's share is charged automatically on a schedule, so nobody has to remember or be chased.

Now stop chasing roommates for it.

Splice charges each roommate their share automatically, so you never send another "rent's due" text.