Free Roommate Calculators

Rent Split

Your roommate with the master suite shouldn't pay the same as the person in the closet-sized room. Split rent by square footage, features, and income — with a Fairness Score.

Roommate Savings

The average roommate saves $700/mo — that's $120,000+ if invested over 10 years at market returns. See your exact savings and what they could grow into.

Cost Compare

Solo: $2,800/mo. One roommate: $1,700/mo. Two roommates: $1,200/mo. See the full cost breakdown for every scenario from 0 to 6 roommates.

Betrayal Score

Paying $1,200/mo for the small room while your roommate pays $1,200 for the master suite with an en-suite bathroom? Get your Betrayal Score and the receipts.

Chore Split

Scrubbing toilets and wiping counters aren't equal chores. Divide household tasks by effort, time, and gross factor — weighted by each person's available hours.

Couple Split

Should a couple sharing one bedroom pay double? Per-person says yes ($1,600). Per-room says no ($800). The fair answer is somewhere in between.

Utility Split

Your roommate who works from home uses $30-60/mo more electricity than you. Split utilities by actual usage patterns, not a lazy 50/50.

Grocery Split

Splitting groceries 50/50 when your roommate eats out 5 nights a week is a bad deal for you. Split food costs by actual usage, diet type, and personal items.

Deposit Split

Split a security deposit between roommates at move-in, when someone leaves mid-lease, or at move-out. Handles damage deductions and pro-rata refunds.

Settle Up

Track shared expenses with roommates and settle up fairly at the end of each month.