RoomRatio

Create a roommate rent agreement summary

A number without its reasoning is easy to dispute later. Calculate the split, review the formula and assumptions, then copy a readable summary for the household.

No signupTransparent formulaExact cent rounding
$

How do you want to split it?

Custom % · each person pays their agreed share

People2
%
%
Totals 100%
Each person paysTotal $2,800.00

Custom % · each person pays their agreed share

Example — edit any value
Alex
60%+$280.00 vs equal
$1,680.00
Sam
40%−$280.00 vs equal
$1,120.00
Compared with 50/50
This method shifts $280.00/month between the two shares.
$3,360.00 over 12 months.
Alex+$280.00 vs equal
Sam−$280.00 vs equal
Would everyone in the household choose the same method?
This is a rent split summary, not legal advice.
Free · no sign-up needed
Run it every monthFree account

Save bills, invite housemates, and reuse this split each month.

Create a free account — email link, password, or Google — and we'll bring this split with you.

How this was calculated
  • Each person pays the percentage you set.

No signup needed. Nothing is stored until you choose to share.

What the agreement summary records

The summary captures the people, monthly amounts, selected method, percentages, assumptions, and rounding. It documents the calculation everyone reviewed without pretending to replace a lease or legal agreement.

Formula
agreed inputs → selected split method → exact monthly shares

Example: documenting a room-based decision

For a $2,800 rent split, the summary can record that Alex pays $1,680 and Sam pays $1,120, explain the 60/40 room weighting, and show that both amounts total exactly $2,800.

Assumptions to review

  • Everyone reviews the names, amount, method, and assumptions before sharing.
  • Create a new calculation when the rent, occupants, rooms, or agreed method changes.
  • The summary explains a calculation; it is not a lease amendment or legal document.

Frequently asked questions

Is this a legal roommate agreement?

No. It is a plain-language calculation summary and does not create, replace, or amend a lease or other legal agreement.

What should everyone check before sharing it?

Check the total rent, participant names, method, inputs, monthly amounts, assumptions, and any cent-rounding note.