Divide rent fairly between roommates — evenly, by room size, or by income — so everyone pays a share that makes sense.
Even split divides rent equally; weighted split divides in proportion to each person's weight (room square footage or income). Fairness is a conversation — agree the method up front. Add shared utilities to the total for a one-number split. General information only.
Equal splits are simplest, but not always fair — a bigger bedroom or a higher income can justify a larger share. Weighting by room size or income divides the rent in proportion, so shares track what each person gets or can afford. The best method is whichever the household agrees on before signing.
Room size rewards who gets more space; income eases the load on lower earners. Some households blend both. Enter either as the weights — the math is the same proportion.
Fold predictable shared bills into the total, or split them separately by the same method. Just be consistent so nobody double-pays.
Related: rent affordability calculator · bill split calculator · percentage calculator · all free calculators.
Yes. The Rent Split Calculator is completely free, runs in your browser, and never asks for a signup, email, or download. Enter your numbers and the result updates instantly.
It uses standard formulas and recalculates the moment you change a value, so the math is exact for the inputs you enter. Treat the result as a reliable planning estimate; for decisions with legal or tax consequences, confirm the figures with a qualified professional.
Yes. The calculator is mobile-friendly and works on any phone, tablet, or computer — there is no app to install and nothing to save.
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Last reviewed: September 2026. Free to use, no signup — Rent Split Calculator by ToolWise Digital.
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