Rent Split Calculator
Work out a fair share of the rent for everyone in the home. Split it equally, by bedroom size or by income, add extras for a private bathroom or parking, and include utilities.
How to split rent by room size
Take any extras off the rent, price the home per square foot, charge each person for their bedroom, share the common space equally, then add each extra back to the person who gets it.
Find the rent per square foot
Rent (minus any extras) divided by the home's total square footage.
Work out the shared space
Total square footage minus all the bedrooms. Divide it equally between everyone.
Add it up for each person
(Their bedroom + their share of the shared space) x rent per square foot.
Worked example
$3,000 rent for a 1,000 sq ft home with bedrooms of 200 and 100 sq ft.
Rent per sq ft = $3,000 ÷ 1,000 = $3
Shared space = 1,000 - 300 = 700 sq ft, or 350 each
First person = (200 + 350) x $3 = $1,650. Second person = (100 + 350) x $3 = $1,350
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Three fair ways to split the rent
Rent Split Calculator
The bigger bedroom pays more. We price the home per square foot, charge each person for their own room, and split the kitchen, living room and hallways equally.
Equally or by income
An equal split is simplest when rooms are similar. Splitting by income means everyone pays the same share of what they earn, which can suit couples or friends on very different salaries.
Why use our rent split calculator?
- Choose from three methods and compare them before you agree
- Extras for a private bathroom, parking or a bigger closet
- Splits utilities equally or the same way as rent
- Shares always add up to the rent, to the cent
- Free, with nothing stored by the calculator
FAQs
What is the fairest way to split rent?
There's no single right answer. If the bedrooms are similar, split equally. If one room is bigger or has its own bathroom, split by room size or add an extra for it.
If incomes are very different, splitting by income keeps rent at the same share of everyone's pay.
How do you split rent by room size?
Divide the rent by the home's total square footage to get a rate per square foot. Charge each person for their own bedroom, then split the shared space equally.
The calculator does this for up to eight bedrooms and assumes each row has its own room: if two people share one, enter them as one row and split that share between them. If you don't know the square footage, pick a rough size for each bedroom instead.
How much more should the person with the private bathroom pay?
Agree a fixed monthly amount and enter it as an extra. The calculator takes extras off the total, splits the rest, then adds each extra back to the person who gets it, so the total still matches the rent.
With an equal split, a $100 extra means that person pays $100 more than everyone else.
How do roommates split utilities?
Most split utilities equally, since everyone uses the kitchen, heating and internet. If one room uses noticeably more, you can split utilities the same way as rent instead.
What happens if a roommate doesn't pay their share?
It depends on your lease and local law. On many joint leases each tenant can be held responsible for the whole rent, and an agreement between roommates usually doesn't change what you owe the landlord.
Put your split in writing anyway, and talk to your landlord early if someone can't pay.