Aisha K.
Mar 12, 2026
Clean layout and the results update instantly. Exactly what I needed for a quick planning check.
Real Estate & Housing
How to Calculate Gross Rent Multiplier
Instant affordability check
Gross Rent Multiplier (GRM) is a fast screening metric equal to price divided by annual gross rent. Lower GRMs can indicate relatively cheaper income properties before deeper underwriting.
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Plain-English guide
Terms & how it works
Confused by a field? Read the short definitions here while you use the tool.
Property Price
The “Property Price ($)” value used in this tool’s formula. Adjust it to see results update live.
Annual Gross Rent
The “Annual Gross Rent ($)” value used in this tool’s formula. Adjust it to see results update live.
- Price
Purchase price
Property cost.
- Rent
Gross rent
Annual rental income.
When to use this Gross Rent Multiplier
Common use cases
- Stress-test monthly payments at different down payments
- Compare renting versus buying over a multi-year hold
- Model rental cash flow before making an offer
Localized examples
- US metro mortgage payment examples
- Canadian property tax and closing-cost planning
What you get
- Update price, rate, and taxes for instant projections
- Side-by-side scenarios for common buyer decisions
- Free online tool with no sign-up wall
How to Calculate Gross Rent Multiplier Step-by-Step
- 1Enter the asking or purchase price.
- 2Input total annual gross rental income.
- 3Review the GRM and implied rent-based valuation context.
Governing formula
GRM = Price / GrossAnnualRent
Quick valuation multiple relating price to gross rents (before expenses).
Example: set Property Price ($) = 350,000, Annual Gross Rent ($) = 36,000, then read the result.
Variable definitions
- Price
Purchase price
Property cost.
- Rent
Gross rent
Annual rental income.
- Lower GRM can mean cheaper relative to rents—compare comps carefully.
Frequently Asked Questions
Often it suggests a lower price per dollar of rent, but expenses and condition still matter.
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Daniel R.
Feb 28, 2026
Very usable on mobile. Would love a save/export option later, but the math feels solid.
Priya S.
Feb 3, 2026
The FAQ section answered my questions before I even had to search. Smooth dark mode too.
Marcus L.
Jan 19, 2026
Simple inputs, clear outputs. This replaced three bookmarks I used to juggle.
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