Free roommate tool
Roommate Rent Splitter
Divide shared rent while accounting for different room values.
Choose how much rent should be shared equally, then use simple room weights to divide the private-room portion. Add shared utilities for a complete monthly split.
Suggested split
Roommate payment summary
Detailed split
| Roommate | Rent | Utilities | Total |
|---|---|---|---|
| Combined | $0.00 | $0.00 | $0.00 |
Talk before deciding: weights are a negotiation aid, not an objective measure of room value. Agree on the method before using the amounts in a roommate agreement.
How the roommate split works
The calculator separates rent into a shared portion and a private-room portion. The shared portion is divided equally because every roommate uses common areas. The private portion is divided according to room weights, which can represent differences such as bedroom size, private bathrooms, natural light, storage, or privacy.
A weight of 1.0 can represent an average room. A somewhat better room might use 1.1 or 1.2, while a smaller room might use 0.9. Only the relative weights matter. If every room uses the same weight, the private portion is also divided equally.
Shared utilities are divided equally and added after the rent calculation. The tool allocates cents so the individual payments add back to the exact totals entered.
