HomeCostTools

Gross Rent Multiplier (GRM) Calculator

Calculate GRM for any rental property and find the implied value at your target rent multiplier.

Gross rent multiplier calculator

GRM: The Quick Rental Property Screener

Gross Rent Multiplier is the real estate investor's version of a P/E ratio. Just as investors use price-to-earnings to compare stocks, real estate investors use GRM to compare rental properties across a market. A lower GRM means you're paying less for each dollar of rent — generally indicating better income potential.

GRM is fastest to calculate because it requires only two data points: asking price and gross rent. This makes it ideal for screening dozens of properties quickly before narrowing down to serious candidates for full due diligence. Keep in mind that GRM ignores operating expenses, so a property with unusually high taxes or maintenance costs can look attractive on GRM but perform poorly in practice. Always follow up with a full NOI and cap rate analysis before making offers.

Related Calculators

Frequently Asked Questions