Gross Rent Multiplier Calculator

Use gross rent multiplier (GRM) to screen rental properties fast — compare price and rent against a comparable GRM benchmark before doing detailed cash flow math.

Property price

Monthly gross rent

Comparable GRM (optional)

Gross rent multiplier

11.29x

Annual gross rent

$37,200

Implied price at comp GRM

$409,200

Required monthly rent at comp GRM

$3,182

How this GRM compares

GRM is in a typical buy-and-hold range for many U.S. rental markets.

At the comparable GRM, the property would be worth $409,200 — about $10,800 below the price entered.

Gross rent multiplier divides the property price by annual gross rent. It is a quick screening tool, not a substitute for a full cap rate or cash flow analysis, because it ignores operating expenses, vacancy, and financing.

How to Use

Enter the property price you are evaluating.
Add the monthly gross rent the property currently produces or is expected to produce.
Optionally add a comparable GRM from your local market to benchmark against.
Review GRM, implied price at the comparable GRM, and the rent that would be required to match the comp.

Frequently Asked Questions

What is gross rent multiplier?

Gross rent multiplier is property price divided by annual gross rent. A property selling for $300,000 with $30,000 of annual gross rent has a GRM of 10x.

What counts as a good GRM?

GRM ranges vary by market. Many cash-flow markets sit in the 6–10x range, balanced markets in 10–14x, and appreciation-heavy markets often run 14x+ where rent alone rarely supports the price.

Why use GRM if cap rate exists?

GRM is a fast first-pass screen using only price and rent. Cap rate requires expense detail. Investors usually start with GRM to filter listings, then run cap rate and cash flow on the survivors.

Does GRM include expenses or financing?

No. GRM only uses gross rent and price. That makes it quick but limited — two properties with the same GRM can have very different cash flow once expenses and financing are layered in.

Should GRM use gross rent or effective rent?

GRM traditionally uses gross potential rent. Some investors use effective rent that already strips out vacancy. Whichever you pick, apply it consistently when comparing properties.