Rent Split Calculator
Splitting rent equally feels fair until one person has the big bedroom with the private bathroom. This calculator splits rent by room size and features — with a share for common areas everyone uses — or equally, or by income, then adds utilities and makes sure the cents add up exactly to the total.
- Free to use
- No sign-up
- Runs in your browser
Rent split calculator
Roommate Rent and Bills Kit
Editable roommate agreement template, shared expense tracker spreadsheet with balances, rent split worksheet, chore chart and a move-in / move-out checklist.
- Roommate agreement (DOCX/PDF)
- Expense tracker (XLSX)
- Split worksheet (PDF/DOCX)
- Chore chart (PDF/DOCX)
- Move checklist (PDF/DOCX)
Formats: DOCX, PDF, XLSX. Instant download after payment (link valid 72 hours, up to 5 downloads). AI-assisted: the templates were drafted with AI help and reviewed and laid out before publishing.
$5.00 USD, one-time 5 files · about $1.00 each
- Instant download
- 7-day refund
- Secure checkout by Stripe
7-day money-back guarantee. Full refund within 7 days of purchase, even after you download.
Free sample: Move In Move Out Checklist (PDF, 55 KB)
Full refund within 7 days — see the refund policy and license.
Free printables
Single sheets you can print right now, no sign-up. The full pack adds every sheet in one download plus the editable files.
Printable Roommate Chore Chart
Printable Move ChecklistThree ways to split rent
| Method | How it works | Best when |
|---|---|---|
| Equal | Rent ÷ number of people | Rooms are similar in size and features |
| Room size + features | A share for common areas split equally, the rest by weighted bedroom size | Rooms differ, or one has a private bath, balcony or parking |
| By income | Each pays in proportion to their income | Couples or friends who agree to share costs by ability to pay |
There’s no single “correct” method — the best one is the one everyone agrees is fair before signing the lease.
How the room-size method works
- Choose a common-area share — the part of the rent that pays for the kitchen, living room and hallways everyone uses. 30–50% is common.
- Split the common share equally.
- Give each bedroom a weight: its size in square feet, increased by any agreed feature bonus (for example +15% for a private bathroom).
- Split the rest of the rent in proportion to those weights.
- Round to cents so the total adds up exactly.
Worked example
Three roommates share a $3,000 apartment with $240 of monthly bills. Alex’s room is 180 sq ft with a private bathroom (+15%), Blair’s is 140 sq ft and Casey’s is 110 sq ft. With 40% of the rent treated as common space, each pays $400 for common areas, and the remaining $1,800 is split by weights 207, 140 and 110. Alex pays about $1215.32, Blair $951.42 and Casey $833.26 in rent, and each adds $80 for bills. Splitting equally would have been $1,000 each — so Casey saves about $167 a month for the smallest room.
Splitting bills and deposits
- Utilities, internet and streaming are usually split equally, since everyone uses them.
- If one person works from home or runs a space heater all day, agree an adjustment.
- Split the security deposit in the same proportion as rent, and write down who paid what.
- Use one shared account or an expense-sharing app for recurring bills.
- Keep receipts — they help settle up at move-out.
Other ways to weigh rooms
| Factor | Typical adjustment people agree on |
|---|---|
| Private bathroom | +10 to +25% |
| Balcony or patio access | +5 to +10% |
| Walk-in closet | +5% |
| Parking space | Often a fixed amount added to that person’s share instead |
| Noisy or street-facing room | −5% |
| Walk-through or shared-wall room | −5 to −10% |
| Room without a window or closet | Larger discount; check local rules on what counts as a bedroom |
Treat these as starting points for a conversation, not rules. Enter the agreed percentage in the feature bonus column — negative numbers work for discounts.
Couples sharing a room
When a couple shares one bedroom in a shared house, many households count the couple as two people for the common-area share and bills (they use more of the kitchen, hot water and electricity) but as one room for the bedroom share. You can model this by adding the couple as two rows and splitting their bedroom size between them, or by adding one row with a feature bonus that reflects the extra use.
Talking about money as roommates
Money conversations are easier before anyone moves in. Share the calculator results with everyone, explain the method you used and why, and be open to adjusting the common-area share or feature bonuses until everyone is comfortable. Setting up automatic payments for rent and a shared list for household purchases means nobody has to chase anyone, and a quick monthly check of the expense tracker keeps small balances from building up into awkward amounts.
When someone moves out
- Give notice as the lease and roommate agreement require.
- Agree whether the remaining roommates will find a replacement or cover the share.
- Recalculate the split if rooms change hands.
- Settle the shared-expense balance and the deposit share in writing.
- Tell the landlord — many leases require approval for new occupants.
Put it in writing
A short roommate agreement avoids misunderstandings: record each person’s share of rent and bills, when payments are due, how the deposit is split, how guests, chores and quiet hours work, and what happens if someone moves out early. It sits alongside your lease, which usually makes all tenants jointly responsible to the landlord for the full rent — something every roommate should understand before signing.
Privacy
Names, sizes and incomes stay in your browser.
Frequently asked questions
What is the fairest way to split rent?
Often by room size and features, with shared space split equally — but agree the method together.
How much extra for a private bathroom?
Many roommates agree on around 10–25% extra weight for that room.
Should utilities be split by room size?
Usually they are split equally, since shared use is similar.
How do I split rent by income?
Each person pays rent × their income ÷ total income.
Why do the cents not divide evenly?
The calculator assigns leftover cents so the total matches exactly.
Is my data saved?
No. Everything stays in your browser.
How do we split rent for a couple?
Count them as two people for shared costs and one room for the bedroom share, or agree a bonus.
Can a feature bonus be negative?
Yes — use a negative percentage for a smaller or less desirable room.
What common area share should we use?
Many households choose 30–50%; a bigger share makes the split closer to equal.
Should the person with parking pay more?
Usually yes — add a fixed amount or a feature bonus agreed by everyone.
Can I print the split?
Yes — print a summary with a line for everyone to sign.