What Is a Good Gross Rent Multiplier?
Gross rent multiplier (GRM) is the fastest way to size up a rental before you do any real work. It uses just two numbers, takes ten seconds, and tells you whether a property's price is even in the ballpark. Here's how to read it — and its very real limits.
The formula
It answers one question: how many years of gross rent would it take to equal the purchase price? A GRM of 8 means the price is eight times the annual rent (Amerisave). Lower generally means better value for a buyer. Run any property instantly with the gross rent multiplier calculator.
The typical ranges
Most investors consider a GRM between 4 and 7 attractive for residential rentals, though the useful range stretches to about 12 depending on the market (GRM benchmark guide, HomeRiver):
- Single-family, secondary markets: 4–7×
- Single-family, major metros: 7–12×
- Small multifamily (2–4 units): 5–9×
- Larger multifamily / apartments: 8–14×
A GRM of 12 or higher usually only makes sense in high-appreciation markets where investors accept low current yield for future upside (GRM benchmark guide).
Why the national average is meaningless
This is the most important thing to understand about GRM: there is no universal "good" number, because rents and prices vary so dramatically by city and even by neighborhood. A 6 GRM might be a steal in one metro and overpriced in another. The right move is to pull GRM for 5–10 comparable properties in the same submarket, calculate the local average, and see where your target sits (GRM benchmark guide). A property priced 20%+ above the local average GRM deserves hard scrutiny.
What GRM ignores (and why that matters)
GRM uses gross rent — it says nothing about operating expenses, vacancy, property taxes, or financing. Two properties with an identical GRM can have completely different cash flow if one has high taxes or an old roof. That's why GRM is a screen, not a decision tool: use it to shortlist deals fast, then run the survivors through the cap rate and cash-on-cash calculators before you make an offer.
Used correctly — as a first-pass filter benchmarked to your local market — GRM saves you hours of analyzing deals that were never priced right to begin with. Start screening with the gross rent multiplier calculator.
Ready to run your own numbers?
Open the Gross Rent Multiplier Calculator →