Split rent equally, by room size, by income, or with your own custom percentages. Add utilities and other shared costs, and the calculator shows what every roommate owes each month.
01 — Rent
02 — Method
Everyone pays the same share of rent.
03 — Roommates
04 — Shared costs
Utilities, internet, parking, pet rent, or anything else billed monthly that the household splits.
No shared costs added.
Optional. The split still works without these.
Tip: shares update live as you type.
FAQ
The most common ways to split rent with roommates, how each method works, and how to think about utilities and personal costs.
It depends on the household. Equal splits work when everyone earns roughly the same and rooms are similar. An income-weighted split makes sense when there's a meaningful pay gap, especially for couples sharing a place. A custom percentage split is the most flexible, useful when one roommate gets the bigger room, a private bathroom, the parking spot, or any other extra perk the household wants to account for.
Each roommate enters their monthly income and the calculator divides rent proportionally. Example: roommates earning $6,000 and $4,000 a month would split a $2,500 rent as $1,500 and $1,000. Many couples use this approach to keep housing affordable relative to take-home pay.
Pick the Room size method and the calculator divides rent in proportion to each bedroom's square footage, so whoever has the larger room pays more. You can enter each room as a total in square feet, or switch to the width by length option and enter the two dimensions in feet and the calculator multiplies them for you. Example: rooms of 150 and 100 sq ft split a $2,500 rent as $1,500 and $1,000. Splitting rent by square footage is the fairest option when bedrooms are noticeably different sizes.
Pick the Custom method and enter a number for each roommate. The values are treated as proportional weights, so they don't have to add up to 100. Entering 60 and 40 splits 60/40, but so does entering 6 and 4, or 75 and 50. Use whichever numbers make the conversation easiest.
Use the Custom method and give that roommate a higher percentage to cover their extra cost, or add the personal item as a shared cost and split it the same way. A dedicated per-person costs list is on the roadmap.
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