Rent Split Calculator
Split rent fairly with your roommates — equally or by room size. No login, no sign-up, instant results.
How to split rent fairly
1. Split equally
The simplest method: divide the total rent by the number of roommates. It works best when rooms are similar in size and everyone earns roughly the same.
2. Split by room size
Each person pays in proportion to their room's square footage. The person with the master bedroom pays more; the one with the small room pays less. Use the "By room size" mode above.
3. Split by income
Some groups split rent proportionally to each person's salary, so housing costs everyone a similar share of their income. It takes an honest conversation, but many roommates find it the fairest option.
Why use a rent split calculator?
Doing the math by hand is error-prone and awkward — especially when rooms differ in size or someone moves in mid-month. A rent split calculator gives everyone a transparent, agreed number in seconds, so the conversation stays about the apartment, not the arithmetic.
And once the rent is settled, SplitApp helps you keep splitting everything else — utilities, groceries, internet — with a simple shared link. No accounts, no ads, no limits.
Rent split? Now split everything else.
Create a free group, share a link with your roommates, and track every shared expense in one place.