A free rent division calculator for roommates and couples. Split rent equally, by room size, by income, or with your own custom percentages. Add utilities and other shared costs, and see what each person 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
How to divide rent with roommates or a couple, what a rent division calculator does, and how to handle 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.
A rent division calculator splits total rent and shared household costs into fair per-person amounts. You enter the monthly rent, choose a method (equal, by room size, by income, or custom weights), and optionally add utilities or parking. The calculator shows what each person pays so you can agree on a split before signing a lease.
When two people share a bedroom as a couple, most households count them as one roommate for rent purposes and split the rest equally among individuals. If incomes differ inside the couple, use the income-based method: enter each person's monthly pay and the calculator divides rent proportionally. For a couple plus roommates, use custom percentages to give the couple one combined share while keeping the math transparent.
For two roommates with similar rooms, an equal 50/50 split is common. If one bedroom is larger, use the room size method and enter each room's square footage. If one person earns significantly more, income-weighted splits keep housing costs proportional to take-home pay. The custom method works when you want a fixed ratio like 55/45 without doing the math by hand.
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