Use this free rent split calculator to split rent between 2 to 6 roommates equally, by room size or by income, and add shared bills. Every share is shown with the math, so everyone can check it.
| Roommate | Rent | Bills | Total | Share |
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Enter the total rent, any shared bills and the number of roommates, then pick a method. The rent split calculator divides the rent, adds an equal share of the bills and shows each person's total, their percentage of the rent and the arithmetic behind it. Change a room size or an income and every share updates.
The rent split calculator above supports all three. Pick the one your household agrees is fair.
Total rent divided by the number of people. It is the simplest method and works when the bedrooms are about the same size and nobody has a private bathroom, parking space or other extra. Three roommates on $2,400 rent each pay $800.
The fairest method when bedrooms differ. Part of the rent covers the shared space everyone uses, so that part is split equally. The rest is split in proportion to each bedroom's square footage. With $2,400 rent, 40% for shared space and bedrooms of 180, 140 and 120 sq ft:
Measure each bedroom yourself: length times width, in feet. If one room has a private bathroom or a walk-in closet, add that space to the room's square footage.
Each person pays the same percentage of their income. It suits couples and partners more than friends, because it means one person pays more for the same space. If one roommate earns $60,000 and another $40,000, the first pays 60% of the rent and the second 40%. Agree on it openly, and decide in advance what happens if someone's income changes.
Private bathroom, the only parking spot, a balcony, the room with the best light: these are worth something, but there is no formula for how much. Two common approaches:
Bills are usually split equally, whatever method you use for rent, because everyone uses the heating, water and internet. If one person works from home all day or runs a space heater, agree on an adjustment in advance rather than arguing over each bill.
Once you agree, write down each person's share, the due date, who pays the landlord and what happens when someone moves out. On most shared leases the landlord can ask any one tenant for the whole rent, so it matters who has actually paid. See joint lease vs individual lease for what you are signing.
If your landlord uses My Rental Spot, each tenant's payments are logged individually in the tenant portal, so everyone can see who has paid their share.
Most landlords combine every applicant's income and test it against the full rent. Check the numbers with the rent-to-income calculator, see how much rent you can afford on your own share, and take our questions to ask when renting an apartment to the viewing.
By room size, when bedrooms differ. Split the shared-space part of the rent equally and the rest by bedroom square footage. If the rooms are about the same, an equal split is fair and simpler.
There is no fixed number. Many roommates use 30% to 50%. A home with a large living room and kitchen justifies a higher share; a home that is mostly bedrooms, a lower one.
Add the bathroom's square footage to that bedroom and use the room-size method, or agree on a flat monthly amount that the person with the bathroom pays on top.
Some do. Others split by income so each pays the same percentage of what they earn. Use whichever you both agree is fair, and write it down.
Yes. It is free, needs no sign-up and runs in your browser. Nothing you enter is saved.
Treat the couple as two people for shared space and bills, since they use both, and as one room for the bedroom part. Or agree on a flat extra amount for the second person.
With My Rental Spot, each roommate pays online and builds a payment history of their own. Creating a renter account is free.
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