Enter a property's price and gross annual rent to calculate its gross rent multiplier.
How to Use the Gross Rent Multiplier Calculator
Enter the property price and gross annual rent to get the GRM. A target GRM field below it converts the other way — plug in whatever multiple you're aiming for and see the price that rent would justify.
GRM is the back-of-envelope cousin of cap rate: much faster to compute, much less informative. It only needs two numbers and skips expenses entirely, which makes it a reasonable first screen across a long list of listings and a poor basis for an actual offer.
GRM = Property Price ÷ Gross Annual Rent
Implied Price = Target GRM × Gross Annual RentA $300,000 property renting for $24,000 a year carries a GRM of 12.5. Flip that around with a target GRM of 12 on the same rent, and the implied price drops to $288,000 — the price a buyer sticking to that multiple would be willing to pay.
Why It's a Screen, Not a Verdict
Two buildings can share an identical GRM and be nothing alike as investments, because operating costs never enter the formula. A property with sky-high property taxes and constant maintenance calls could post the same multiplier as one that runs lean, right up until the actual cash flow numbers diverge sharply. Real estate professionals lean on GRM to quickly rank a stack of listings and then move the survivors on to cap rate or cash-on-cash analysis, which do account for expenses — not to make a final call on their own.