How do you split rent when the bedrooms are different sizes?

Divide the rent by each room's share of the total private floor area. A 120 square foot room and an 80 square foot room split a rent of 20,000 as 12,000 and 8,000. Shared spaces are not measured separately — they are paid for out of the same rent.

Should a couple sharing one room pay half the rent?

Usually more than one person's share and less than two. Counting them as one and a half shares is the most common compromise: they occupy a single bedroom but use the kitchen, bathroom and living space as two people.

Do the shares always add up to the exact rent?

Yes. The calculation is done in paise and the remainder is distributed rather than rounded away, so the sum of everyone's share is exactly the rent and bills you entered.

Rent split calculator

Enter the rent, add your flatmates, and choose how to divide it. Room sizes in any unit, as long as everyone is measured in the same one.

Monthly rent

₹

Shared bills (optional)

₹

Equally

By room size

By shares

Any unit, as long as it is the same one for everyone — square feet, square metres, paces.

Rent and bills together₹34,000.00

You54.5%₹18,545.45
Flatmate45.5%₹15,454.55

Adds up to exactly ₹34,000.00 — the leftover paise go to whoever lost the most in the rounding, which is the same rule the app charges by.

Dividing rent by room size

Add each private room's floor area and the calculator gives each person that share of the total. Shared space — the kitchen, the living room, the bathroom nobody has to themselves — is already inside the number, because it is paid for by the rent everyone is dividing.

It is the method that survives an argument, because the inputs are measurable. “My room is smaller” is an opinion; “my room is 90 square feet and yours is 130” is not.

When shares are the better tool

Two people in one bedroom are the case room size handles badly: they occupy one room but use the kitchen, the bathroom and the living room twice as heavily. Counting them as one and a half shares is the usual compromise, and the shares mode is how you enter that.

The same mode covers a lodger paying a fixed fraction, or a room that is only used four nights a week.

The leftover paise

Rent rarely divides cleanly, and rounding each share to the nearest rupee leaves a total that does not match the rent. This distributes the remainder instead — one extra paisa to whoever lost the most in the rounding — so the shares always add back to exactly what the landlord is owed.

It is the same rule the app itself charges by, so working a month out here and then doing it again inside a group cannot show you two different numbers.

Rent is the easy month

The rent is the same figure every month and takes one calculation. It is the electricity bill, the internet, the plumber and the shared groceries that quietly accumulate into an argument, because they are paid by different people in different amounts at different times. A shared record is what handles those.

Rent is the easy month. Everything else — the shared groceries, the internet bill someone else paid, the plumber — is what a Splitly group is for.

Frequently asked questions

How do you split rent when the bedrooms are different sizes?: Divide the rent by each room's share of the total private floor area. A 120 square foot room and an 80 square foot room split a rent of 20,000 as 12,000 and 8,000. Shared spaces are not measured separately — they are paid for out of the same rent.
Should a couple sharing one room pay half the rent?: Usually more than one person's share and less than two. Counting them as one and a half shares is the most common compromise: they occupy a single bedroom but use the kitchen, bathroom and living space as two people.
Do the shares always add up to the exact rent?: Yes. The calculation is done in paise and the remainder is distributed rather than rounded away, so the sum of everyone's share is exactly the rent and bills you entered.