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Room rent split calculator

The big bedroom with its own bathroom and the small one by the stairs are not worth the same rent. Type what the whole house has to bring in, each bedroom's size, and which ones have a bathroom. You get a rent for every room, and they add up.

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Price every room
One rent for the house, divided by size and bathroom.
Rent by room
$40,800 a year when every room is full
$3,400
  • Bedroom 1$590
    110 sq ft$90 under an even split
  • Bedroom 2$615
    120 sq ft$65 under an even split
  • Bedroom 3$635
    130 sq ft$45 under an even split
  • Bedroom 4$685
    150 sq ft$5 over an even split
  • Primary suite$875
    200 sq ftown bathroom$195 over an even split
Adds up to $3,400 a month

Split evenly, every room would be $680. Priced by what each one offers, Primary suite is $875 and Bedroom 1 is $590.

The house
$a month
$a month
How much of the rent is for the shared house

The kitchen, the living room, the laundry. That part is divided evenly and the rest by bedroom size. More here brings the rooms closer together.

Round each room to the nearest
The bedrooms

Measure the bedroom only, wall to wall. A closet counts; the hallway does not.

  • sq ft
  • sq ft
  • sq ft
  • sq ft
  • sq ft
Rule of thumb: Start from what the whole house has to bring in, then check each room against rooms like it near you before you post it. If the smallest room comes out above what rooms there go for, the house target is the number to look at again.

Why not charge every room the same

An even split prices the best room too low and the worst room too high. The best room fills the day you post it, and you never find out what it was worth. The worst room sits, because the person looking at it can see the bigger one down the hall for the same money.

An empty room costs you its whole rent every month it sits. Pricing the small room a little lower costs you a few dollars a month. So price each room for what it offers and let the house total stay where you need it.

What goes into a room's price

Three things, in this order. Each one is a number you set, so you can see what moves a room's rent and say why when a resident asks.

  • A private bathroom: a flat amount each month, taken off the top and given to the rooms that have one
  • The shared house: the kitchen, living room and laundry everybody uses, divided evenly
  • The bedroom itself: what is left, divided by square feet

What the numbers cannot see

Square feet miss a lot. A room with no closet, a window facing the street, or the wall it shares with the laundry is worth less than its size says. A room with its own door to the yard is worth more.

Use the figures here as the starting point. Then move a room by hand where you know something the tape measure does not, and take the same dollars off another room so the house still adds up.

Last, look at what single rooms near you are listed for. If your smallest room comes out above them, the house target is too high for the house, and no split will fix that.

A worked example

A five-bedroom house that has to bring in $3,400 a month. Four bedrooms share two bathrooms and the primary suite has its own. A private bathroom adds $75, half the rent is for the shared house, and each room is rounded to the nearest $5.

Bedroom 1, 110 sq ft
$590
Bedroom 2, 120 sq ft
$615
Bedroom 3, 130 sq ft
$635
Bedroom 4, 150 sq ft
$685
Primary suite, 200 sq ft, own bathroom
$875
An even split would be
$680 each
The rooms add up to$3,400

The primary suite is nearly twice the size of Bedroom 1 and pays about half as much again, not double, because both residents use the same kitchen and living room.

Common questions

How do I decide what the whole house should rent for?

Add up what the house costs you each month, including the utilities, internet and cleaning you cover, then add what you need to be left with. Check that against single rooms listed near you. The rent by the room calculator on this site puts those costs side by side with renting the house whole.

How do I measure a bedroom?

Length times width, wall to wall, in feet. Count a closet that opens into the room. Leave out the hallway and any bathroom, because a private bathroom has its own line here. Round to the nearest whole square foot.

Should two people in one room pay more?

This prices the room, not the people in it. If your lease lets two people share a bedroom, write down what the second person adds each month, because they use water and power too, and use the same amount for every room in the house.

Why do the rooms always add up exactly?

Each room is rounded down first. The few dollars left over then go, one step at a time, to the rooms that lost the most to rounding. No room ends up more than one step from its unrounded figure, and the total never drifts.

These calculators are educational and are not legal, tax, lending, or accounting advice. Rules vary by state and by city, and your lease governs your own properties. Check your own requirements before relying on any number here.

Once the rents are set

RentCaddie keeps each room's own rent and bills each resident for theirs.

Every bedroom holds its own asking rent. It shows on that room's listing and in the ad RentCaddie writes for it. Each resident signs their own lease and gets their own bill, so one person paying late never touches the rest of the house.

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