Free tool · for shared houses
Roommate Bill-Split Calculator — Free
Enter a month of shared costs and who actually paid for each one, and this works out what every roommate owes, what they're owed, and the transfers that clear the month. Split a cost among everyone, or among just the people it was for. Nothing is saved or sent — the math runs in your browser. Or download the fillable spreadsheet and keep it.
Roommate Bill-Split Calculator
Priya pays Nadia $48.48; Priya pays Marcus $45.76; Theo pays Nadia $68.36; Theo pays Marcus $64.53
Where everyone stands
| Person | Paid out | Their share | Net | Where they stand |
|---|---|---|---|---|
| Nadia | $241.40 | $124.56 | $116.84 | Is owed |
| Marcus | $243.18 | $132.89 | $110.29 | Is owed |
| Priya | $38.65 | $132.89 | -$94.24 | Owes |
| Theo | $0.00 | $132.89 | -$132.89 | Owes |
Who pays whom
- Priya pays Nadia$48.48
- Priya pays Marcus$45.76
- Theo pays Nadia$68.36
- Theo pays Marcus$64.53
Everyone who owes pays everyone who is owed, in proportion to what each is owed — so every figure is explainable in a sentence and the totals always match. Rounding can leave a cent or two; give it to whoever is owed most.
Total shared spending this month: $523.23
Six cost rows here; the downloadable spreadsheet holds ten. Pre-filled with a clearly fictional example — replace it with your own month, or clear it with the button above. Nothing is sent anywhere and nothing is saved. This handles one month for up to four roommates, split two ways; the full kit runs a rolling log for six, adds splitting by rent share, a house agreement and a chore rotation. (Arithmetic on the figures you enter — not a lease, and not legal, tax, or financial advice.)
Take it with you — free, no signup
Direct download. No email, no account — just the files.
What it does
- Splits each cost among everyone, or among just the roommates you tick for it.
- Nets what each person paid out against what they actually owed, so you see one balance per person.
- Names the transfers: everyone who owes pays everyone who is owed, in proportion to what each is owed — so every figure is explainable in a sentence.
- Runs entirely in your browser; nothing is saved or sent. Or download the fillable spreadsheet (Excel, Google Sheets, or LibreOffice).
Own it, don't rent it
Ready to run the whole house from one file?
This free tool settles one month for up to four roommates, split two ways. The full kit is where a shared house actually runs: a 26-term house agreement you agree and date, a rolling expense log for up to six roommates with four split methods — including splitting by each person's rent share — a chore rotation that fills itself in for eight weeks and flags anyone carrying more than a fair share, a shared shopping list, a house reference that stores no passwords by design, and a dashboard that calculates any month you point it at. Ten connected tabs plus four PDF guides and a one-click Google Sheets copy the whole house can edit.
A one-time purchase the house keeps — the owned workbook between a group chat and a rented bill-splitting app.
Arithmetic on the figures you enter — not a lease, not a contract, and not legal, tax, or financial advice. A balance here is not a legal claim on anyone. The example house is fictional and illustrative. Free to use; please don't resell or redistribute.