Screen a rental in seconds with GRM.
Divide the price by one year of gross rent and you get the gross rent multiplier: a fast, back-of-the-napkin read on whether a property is cheap or expensive relative to the rent it pulls in. Lower is better.
The property
Typical GRM runs about 5 to 10 in most rental markets. Leave the market number blank if you just want the raw multiple.
Is the price fair?
Your GRM against the market
Lower bars mean a cheaper price for the rent
How GRM moves with the price
Deal scorecard
GRM across a range of prices
Same rent, different asking prices. This shows the price you would need to hit a given GRM.
| Price | Gross annual rent | GRM | Implied value | vs market |
|---|
Gross rent multiplier, explained
What the gross rent multiplier tells you
The gross rent multiplier is the property price divided by its gross annual rent. If a home costs $300,000 and rents for $2,200 a month, the gross annual rent is $26,400 and the GRM is about 11.4. In plain terms, it would take roughly 11.4 years of gross rent to equal the purchase price. A lower GRM means you are paying less for each dollar of rent, so the property pays for itself faster on a gross basis. Because it uses only price and rent, GRM is the quickest way to rank a stack of listings before you dig into any one of them.
Why GRM is a screen, not the whole story
GRM ignores expenses entirely. It says nothing about property taxes, insurance, maintenance, vacancy, management or the mortgage, and two properties with the same GRM can have very different cash flow once those costs land. Use GRM to shortlist and compare, then run a full analysis on the survivors: cap rate, cash-on-cash return and real monthly cash flow. Compare GRM only against similar properties in the same market, since a fair multiple in one city can be high or low in another. Treat it as a first filter, quick and rough, and let the deeper numbers make the final call.
Common questions
What is a good gross rent multiplier?
There is no single right number, but most rental markets fall between about 5 and 10. Lower is better because you are paying less for each dollar of annual rent. Compare a property only against similar homes in the same area, since a healthy GRM in one market can look high or low in another.
How do I calculate GRM?
Divide the property price by the gross annual rent. Gross annual rent is the monthly rent multiplied by 12. For a $300,000 home renting at $2,200 a month, the annual rent is $26,400 and the GRM is 300,000 divided by 26,400, which is about 11.4.
Does GRM include expenses?
No. GRM uses only price and gross rent, so it leaves out taxes, insurance, maintenance, vacancy, management and financing. That is what makes it fast, and also why it is only a screen. Two properties with the same GRM can have very different cash flow once real costs are counted.
What is the difference between GRM and cap rate?
GRM uses gross rent and ignores costs, while cap rate uses net operating income after operating expenses. GRM is quicker for a first pass across many listings, and cap rate is more accurate for judging a single deal. Investors often use GRM to shortlist, then cap rate to decide.
How does the market GRM give me a fair value?
Multiply the market GRM by the property gross annual rent. If similar homes trade at a GRM of 10 and this one earns $26,400 a year in rent, the implied fair value is about $264,000. Compare that to the asking price to see whether the listing is priced below or above the local market.
Is a lower or higher GRM better?
Lower is generally better for a buyer, because it means more rent for the price and a faster gross payback. A very low GRM can also be a signal to look closer, since it may reflect a rough area, deferred maintenance or soft demand. Always pair the number with a look at the property and the neighborhood.
Estimates for planning only. The gross rent multiplier ignores expenses, financing and vacancy and is a quick screen, not a full analysis. Real returns depend on operating costs, local market conditions, tenant quality and time in the market. Verify every figure before you buy.