Rent Split Calculator
Equal splits are simple, but not always fair — incomes differ and so do bedrooms. This calculator divides the rent two ways: evenly, or in proportion to numbers you supply (income, room size, or your own fairness weights). Add one row per person.
Results
Formula
How to use this calculator
- Enter the total monthly rent.
- Choose equal or weighted splitting.
- Add a row for each person; for weighted splits, enter incomes (or room sizes), then Calculate.
Worked example
Two roommates earning $50,000 and $75,000 split $1,800, weighted by income.
- Total income: $125,000.
- Shares: 50/125 = 40% → $720; 75/125 = 60% → $1,080.
Result: The lower earner pays $720 and the higher earner pays $1,080 — the same 40/60 proportion as their incomes.
Frequently asked questions
Is splitting by income actually fair?
It equalizes the burden: each person gives up the same percentage of income. Many roommates prefer it when incomes differ a lot; others prefer equal shares or room-size based splits. This tool supports all three.
How do I split by room size?
Choose the weighted method and enter each bedroom’s square footage as the weight. Shared spaces are the usual sticking point — some households weight private rooms only.
Should utilities split the same way?
Often yes for shared utilities, but usage-based items (like a parking spot only one person uses) are usually assigned to that person directly.
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