Everyday Tools
Fair Rent Split Calculator
Explore equal, income-weighted or custom room-weighted rent shares.
✓ Free
✓ No account
◉ Runs on this device
Everyday Tools
Powering up the tool…
TOOL FAIR-RENT-SP
What this tool does
About the fair rent split calculator
Enter the total and occupants, then compare transparent splitting methods. “Fair” remains a household decision; the tool labels each formula and lets everyone inspect the inputs.
Method
- Equal
rent / occupants- Income Weighted
rent × occupant income / total income- Room Weighted
rent × occupant weight / total weights
- Shares use one selected method and sum to the entered rent before display rounding.
- Income and room weights are non-negative values agreed by the users.
- Utilities, deposits, legal obligations and room quality are included only if reflected in the entered total or weights.
How to use it
- Enter the total rent and the occupants.
- Compare the three methods: equal, income-weighted, and room-weighted with weights you agree together.
- Watch every share update, with each formula labelled.
- Agree one method as a household and write it down.
Useful for
- Split rent in a flatshare where the rooms are nothing alike.
- Explore an income-weighted split for a couple with different salaries.
- Give the household a neutral page to argue with instead of each other.
Straight answers
Fair Rent Split Calculator FAQ
Which method is actually fair?
That is a household decision, not a mathematical one — which is why the tool shows three labelled methods instead of anointing a winner. Its job is transparency: everyone sees the same inputs and the same arithmetic.
How do we weight unequal rooms?
A practical route: start everyone at 10, then adjust for en-suites, size, light and noise until the room-holders accept their numbers. The weights are the negotiation; the tool just makes them sum correctly.