Roommate Rent Split Calculator

Size-based is the most common and least contentious. If master bedroom is 2x a shared room, it should cost 2x — hard to argue with.

Technically yes. Advanced calculators allocate living room + kitchen equally, then private rooms by size. This calc keeps it simple.

Not necessarily. Higher-earning roommate may resent subsidising. Discuss openly before signing lease.

Usually split equally — electricity, internet, water — regardless of room size. Unless one roommate heavily uses AC in larger room; add surcharge.