Split rent and utilities between roommates — equally, or fairly by room size. Utilities are always shared evenly.
The bills
Rent uses the chosen method; utilities are always split equally.
Roommates
Doing this every trip?
Splitwin remembers your group, tracks every expense as you add it, and settles up automatically — free, no ads in your way, no paywalls.
How it works
A rent splitter divides rent and utilities between roommates. Split rent equally, or fairly by room size so someone with a larger room pays proportionally more; utilities are shared evenly since everyone uses them the same.
How to use it
Enter the rent and any utilities.
Choose Equal or By room size.
Add each roommate (and room size, if using that method).
Click Split it to see each roommate's monthly share.
FAQ
How do I split rent by room size?
Choose “By room size”, enter each roommate's room size (square footage, or any number that reflects their share), and rent is divided in that proportion. Utilities stay split equally since everyone uses them the same.
Can I just split rent equally?
Yes — leave the method on “Equal” and everyone pays the same. Switch to “By room size” only when rooms differ.
What about tracking it every month?
This calculates one split. For recurring rent and utilities that repeat automatically each month, Splitwin handles recurring expenses for you.