Split the rent. Fairly, not just evenly.
An even split isn't always a fair one — the room with the private bath or the extra window usually deserves a bigger share. Pick a method below, add your roommates, and see everyone's exact number update as you type. Nothing you enter leaves your browser.
Three ways to split, one honest answer
Equal split
Total rent divided evenly across everyone. The simplest option, and the right one when the rooms are genuinely comparable.
By room size
Splits proportionally by square footage, with optional bumps for a private bathroom or extra closet and window space.
By income
Splits proportionally by what each person earns, so rent takes a comparable bite out of everyone's paycheck.
Frequently asked questions
What's a fair way to split rent between roommates?
There's no single right answer — it depends on what your household values. Splitting evenly is simplest and works well when rooms are similar. Splitting by room size (with a bump for a private bathroom or extra space) accounts for who has the better room. Splitting by income keeps rent a similar percentage of everyone's paycheck rather than a similar dollar amount. Try more than one method above and see which feels right.
How much extra should a private bathroom add to someone's share?
Ten percent is a common starting point, which is why it's the calculator's default — enough to reflect the real convenience without making the room unaffordable. You can turn the bonus off entirely if your household would rather keep it simple.
Does this save or share what I enter?
No. The calculator runs entirely in your browser — there's no account, no server, and nothing is stored once you close the tab.
What if we can't agree on a method?
Run the numbers for two or three methods and compare the actual dollar difference — often it's smaller than the disagreement suggests. If someone's room is meaningfully bigger or better, splitting by room size with the bathroom bonus is usually the method that ends the debate fastest.
More ways to split
Same calculator, tuned for two common situations: