Rent Split Calculator
Updated on 22 Oct 2026 · Checked by Aotob
Splitting $2,400 of rent by room size, the biggest room pays $1,005 a month with bills.
The smallest pays $816; equal shares would be $900.
Room 1 pays
$1,005a month
Half the rent (or the share you set) is split equally for the kitchen, bathroom and living space; the rest follows room size. An equal split would be $900 each.
Show the working
Room 1: 1,200 ÷ 3 + 1,200 × 16/38 + bills 100 = 1,005
Room 2: 1,200 ÷ 3 + 1,200 × 12/38 + bills 100 = 879
Room 3: 1,200 ÷ 3 + 1,200 × 10/38 + bills 100 = 816
Each person pays
| Room | Rent | Bills | Total |
|---|---|---|---|
| Room 1 | 905 | 100 | 1,005 |
| Room 2 | 779 | 100 | 879 |
| Room 3 | 716 | 100 | 816 |
Questions people ask
What is the fairest way to split rent?
Splitting part of it equally for shared space and the rest by bedroom size. Adjust for an en-suite, a parking space or a room with no window by agreeing a premium.
What share should be split equally?
Commonly 40% to 60%. Set it to 100% for an equal split.
Can I use square feet?
Yes, any unit works, as long as every room uses the same one.
Updated 22 Oct 2026Source: Published government rules and typical costs, checked October 2026Checked by AotobA suggestion to agree on together.Report an issue