Ava
27% of bedroom area
$1,004
Rent
$884
Utilities
$120
27% of bedroom area
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Roommate rent calculator
Free Rent Split Calculator
A rent split calculator helps roommates divide monthly rent fairly by combining an equal share with bedroom size, private bathroom, parking, and shared utility assumptions.
Use it before signing a lease, choosing rooms, or settling a new roommate agreement so every person can see the same math.
45%
Base rent weighted by bedroom size
3
Active roommate rows
$0
Free, private, and no signup required
Calculator
Household costs
Roommates
Room details
Result
Fair monthly split
The total equals rent plus utilities, with premiums applied first and remaining rent split by your selected method.
Total monthly cost
$3,560
Premium pool
$300
Ben
40.5% of bedroom area
$1,480
Rent
$1,360
Utilities
$120
40% of bedroom areaPrivate bath premium includedParking charge included
Cam
32.6% of bedroom area
$1,077
Rent
$957
Utilities
$120
33% of bedroom area
Balanced method
Choose how much of rent stays equal and how much follows bedroom size.
Premium handling
Add consistent charges for private bathroom or parking perks.
Copyable agreement
Copy a short roommate-ready summary with totals and method notes.
FAQ
Rent split questions
Use these answers to agree on the method before discussing who gets which room.
What is a rent split calculator?
A rent split calculator estimates how much each roommate should pay by combining equal rent sharing with room size, private bathroom, parking, and shared utility assumptions.
Should rent be split equally or by room size?
Equal splitting is simple, but splitting part of rent by bedroom size is often fairer when one roommate has a much larger room or better private space.
How do private bathrooms affect rent split?
A private bathroom is usually handled as a monthly premium added to that roommate's share before the remaining rent is divided by the agreed method.
Should utilities be split the same way as rent?
Utilities are often split equally because usage is shared, but roommates can adjust separately if one person has a clearly different usage pattern.
Is this rent split legally binding?
No. This calculator is a planning tool. Roommates should document the final agreement in writing and follow the lease terms that apply to the rental.
FriendlyLoans
Turn shared housing costs into a clear agreement.
FriendlyLoans helps people make clear money agreements with friends and family. Use the calculator here, then keep written terms for any shared payment plan.