Rent Split Calculator

Enter the rent and the people sharing it. Split it by room size, by income or equally, with a share for the common space (kitchen, living room) split evenly first. Shares are rounded to the cent and add up to the rent exactly.

Split

Total rent

Example value, not a market price. Use yours.

Share for common space (%)

Split equally before the rest is split by size or income. 0 for none.

One person per line: name, room size (m² or sq ft)

Alex

931.76

38.8 %: 240.00 common space + 691.76 for the room

Sam: 783.53
Kim: 684.71

Working: 2400 × 30 % split equally, the rest of 2400 split by room size; first share = 931.76

720.00 for common space (kitchen, living room, hall) is split equally; the other 1,680.00 is split by room size. Shares are rounded to the cent and add up to the rent exactly. Nothing you type is saved or put in the link.

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Frequently asked questions

How does the common-space share work?

Everyone uses the kitchen, living room and bathroom, so that part of the rent is split equally. With 30 % common space on a rent of 2,400, 720 is split equally and the other 1,680 by room size or income. Without it, a small room would pay very little for full use of the flat.

What percentage should common space be?

A simple rule is the share of the floor area that is shared: if bedrooms are 34 m² of a 90 m² flat, the rest is about 60 %. Many groups just pick 20–40 %. Agree on it together before splitting.

How does splitting by income work?

Each person pays in proportion to their income: someone earning 60 % of the household income pays 60 % of the non-common rent. Use the same period for everyone (monthly or yearly, before or after tax).

Do the shares add up exactly?

Yes. Shares are rounded to the cent and any leftover cent goes to whoever's share was closest to rounding up, so the total is always the rent you entered.