Bigger room, bigger share — split your rent fairly.
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Splitting rent equally feels simple but is unfair when rooms differ. A common method splits the shared-space part of the rent equally and the rest by bedroom size.
Couples with different incomes often split by income instead, so each pays the same share of their pay.
| Total rent | 3000 |
| Split by | Bedroom size |
| People and room sizes / incomes | Sam: 14, Alex: 10, Jo: 9 |
| Share of rent for shared space (room split) | 50% |
| Currency | $ Dollar |
| Sam | $1,136.36 |
| Alex | $954.55 |
| Jo | $909.09 |
Sam pays $1,136.36.
| Total rent | 2400 |
| Split by | Income |
| People and room sizes / incomes | Ana: 90000, Ben: 60000 |
| Share of rent for shared space (room split) | 50% |
| Currency | $ Dollar |
| Ana | $1,440.00 |
| Ben | $960.00 |
Ana pays $1,440.00.
By room size plus equal shares of common areas, adjusted for extras like a private bathroom or parking.
Either 50/50 or in proportion to income, so both keep a similar share of their pay.
Usually equally, since everyone uses them, unless usage is very different.
Add its area to that person's room size, or add a fixed premium.