Rent Split Calculator

This divides rent between housemates three ways. The room-size split sets aside a share of the rent for the kitchen, bathroom and living room, divides that evenly, and divides the rest by the size of each private room. The income split puts the rent in proportion to what each person earns and shows what percentage of their own income it takes. The third handles a part month, dividing by the nights each person was actually there and showing what the household is left short if everybody pays only for their own nights. Every split is rounded to whole cents by largest remainder, so the shares add back to the rent exactly and the odd cent is given to a named person.