Split rent by room size and quality
Equal rent is easy. That does not make it fair when one bedroom is much larger. Compare private rooms by area and amenities, then keep shared space equal.
How do you want to split it?
Most shared rentals start with room — but income, custom %, or equal work too.
Kitchen, living room, pool… — paid for by everyone, so it's split equally.
By room · weighted by size & amenities, shared space split equally
Save bills, invite housemates, and reuse this split each month.
Create a free account — email link, password, or Google — and we'll bring this split with you.
How this was calculated
- Larger bedroom: weight 180.00
- Smaller bedroom: weight 120.00
- Room weights come from size and amenities; you can adjust them.
No signup needed. Nothing is stored until you choose to share.
How a room-size rent split works
RoomRatio separates private bedrooms from common space. The private portion follows each room's area or quality score; the common portion is divided equally among everyone who uses it.
private rent × room weight ÷ total room weights + equal common-space shareExample: 180 sq ft and 120 sq ft bedrooms
With $2,400 rent, no separate common-space allocation, and no amenity adjustments, the rooms represent 60% and 40% of the private area. The resulting shares are $1,440 and $960, which add back to exactly $2,400.
Assumptions to review
- Only compare space and amenities the household agrees are relevant.
- Use the common-space setting for kitchens, living rooms, and other shared areas.
- The calculator preserves the exact rent total after cent rounding.
Frequently asked questions
Should shared space count toward room size?
Yes, but it should be treated separately from private bedrooms. RoomRatio divides the agreed common-space portion equally.
Can amenities change the result?
Yes. Add only meaningful differences such as a private bathroom, better light, a better view, or closet space, and show those assumptions with the result.