How Client-Side Fair Rent Splitting Works
Fair Rent Split & Roommate Calculator runs entirely in your browser with JavaScript. There is no sign-up, and whatever you type or open here is processed on your device instead of being sent to a server.
Divide Apartment Rent Fairly by Room Size, Income or Private Bathroom
Calculate fair rent portions for roommates by room size, by income or equally, with an optional premium for each private bathroom. Calculations run 100% on-device in browser memory, keeping your lease details and personal housing budgets completely private.
Exact-Total Rounding, Including Whole-Rupee PKR
Shares are rounded to whole rupees for PKR and to the cent for USD, GBP, EUR, INR, AED, CAD and AUD, and leftover units are handed out so the payments add up to the total rent exactly.
Private Bathroom Premium
Set one fixed premium and tick each roommate with a private bathroom; for a walk-in closet, parking spot or balcony, agree an amount and add it to that person's share yourself.
Worked Example: Three Roommates, Three Ways to Split
Take $3,000 rent and rooms of 200, 150 and 150 sq ft, where Alex's room has a private bathroom worth a $150 premium. Split equally with no premium, everyone pays $1,000. Split by room size, the premium comes off first, the remaining $2,850 is shared 40/30/30 ($1,140, $855 and $855), and Alex then adds the $150: Alex pays $1,290, and Sam and Jo pay $855 each. Split by income instead, with monthly incomes of $6,000, $4,000 and $2,000 and no premium, the shares are $1,500, $1,000 and $500, so everyone pays 25% of what they earn. In every case the shares add up to exactly $3,000.
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