Calculate the Gross Rent Multiplier (GRM) for any rental property. Enter the property price and annual rent to instantly evaluate investment potential and compare properties.
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Verified: National Association of Realtors — Investment Property Analysis — April 2026
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Calculate the Gross Rent Multiplier (GRM) for any rental property. Enter the property price and annual rent to instantly evaluate investment potential and compare properties.
Gross Rent Multiplier
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⚠️ Disclaimer: GRM is a preliminary screening metric only. It does not account for expenses, financing costs, taxes, vacancy, or capital expenditures. Always conduct full due diligence including a complete income and expense analysis before any real estate investment.
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Sources & Methodology
✓ Formulas and reference data verified against authoritative sources listed below.
Real estate investment community guide to using GRM for property analysis
Methodology: GRM = Property Price / Annual Gross Rent. Annual Gross Rent = Monthly Rent x 12. Gross Yield = (Annual Rent / Price) x 100. GRM ratings: Excellent < 7, Good 7-10, Fair 10-14, Poor > 14. These are general benchmarks; market norms vary significantly by location.
⏱ Last reviewed: April 2026
How to Calculate the Gross Rent Multiplier
The Gross Rent Multiplier (GRM) is one of the fastest ways to screen rental investment properties. It compares a property's purchase price to its gross annual rental income, giving investors a quick ratio to compare deals side-by-side without needing detailed expense data. A lower GRM generally indicates a better investment, though market context always matters.
The GRM Formula
GRM = Property Price / Annual Gross Rent. Annual Gross Rent = Monthly Rent x 12. For example, a $300,000 property renting for $2,000/month has an annual rent of $24,000. GRM = $300,000 / $24,000 = 12.5x. This means the property costs 12.5 times its annual gross rent.
What Is a Good GRM?
GRM benchmarks vary by market. As a general guide: under 7 is excellent, 7 to 10 is good, 10 to 14 is fair, above 14 may indicate an overpriced property or weak rental market. In expensive coastal markets like San Francisco or New York, GRMs of 20+ are common. In the Midwest and South, values of 5 to 8 are achievable.
GRM vs. Cap Rate: Key Differences
The cap rate (capitalization rate) is a more accurate investment metric because it accounts for operating expenses. Cap Rate = Net Operating Income / Property Price. GRM uses gross rent only (no expenses), making it faster but less precise. Use GRM to quickly screen dozens of properties, then calculate the cap rate on your shortlist.
How to Use GRM to Find the Right Price
You can work the formula in reverse to find the right offer price: Maximum Price = GRM Target x Annual Rent. If your target GRM is 8 and the property rents for $2,000/month ($24,000/year): Maximum Price = 8 x $24,000 = $192,000. This helps set a data-driven ceiling for your offer.
Annual Gross Rent = Monthly Rent x 12. A GRM of 10 means the property costs 10 years of gross rental income. Inverse of GRM = Gross Yield: GRM 10 = 10% gross yield, GRM 8 = 12.5% gross yield.
GRM Benchmarks by Market Type
GRM Range
Rating
Gross Yield
Typical Market
Under 7
Excellent
Over 14%
Midwest, rural, high-yield markets
7 to 10
Good
10% to 14%
Secondary cities, growing markets
10 to 14
Fair
7% to 10%
Suburban metros, competitive markets
14 to 20
Below Average
5% to 7%
Major coastal metros
Over 20
Poor / Speculative
Under 5%
NYC, SF, LA — appreciation play
💡 Investor Tip: GRM is a screening tool, not a final analysis. Always follow up with a full cash-flow analysis including property taxes, insurance, maintenance (budget 1% of value/year), vacancy rate (5-10%), and property management (8-10% of rent) before making an offer. Many deals that look good by GRM fail the cash-flow test.
Frequently Asked Questions
The Gross Rent Multiplier (GRM) is the ratio of a property's price to its annual gross rental income. GRM = Property Price / Annual Rent. A GRM of 10 means the property costs 10 times its annual rental income. Lower GRM generally indicates better value.
A GRM under 7 is generally excellent, 7 to 10 is good, 10 to 14 is fair, and above 14 may indicate poor value. However, good GRM varies significantly by market. In expensive cities like New York or San Francisco, a GRM of 18 to 25 is common, while in the Midwest, 5 to 8 is achievable.
GRM uses gross rent (before expenses). Cap Rate uses Net Operating Income (gross rent minus all operating expenses). Cap Rate = NOI / Property Price. Cap rate is more accurate but requires expense data. Use GRM for quick screening, cap rate for detailed analysis.
Maximum Price = Target GRM x Annual Rent. If your target GRM is 9 and the property rents for $1,500/month ($18,000/year): Max price = 9 x $18,000 = $162,000. This gives you a data-driven ceiling for your offer.
Gross Yield = 1 / GRM x 100. GRM of 10 = 10% gross yield. GRM of 8 = 12.5% gross yield. GRM of 15 = 6.7% gross yield. Gross yield is the inverse of GRM expressed as a percentage.
Lower GRM is better. A lower GRM means you are paying less relative to the rental income the property generates. A GRM of 6 means you pay 6 years of rent to buy the property (excellent). A GRM of 20 means you pay 20 years of rent (poor value unless you expect appreciation).
No. GRM uses gross scheduled rent with no deductions for vacancy, expenses, taxes, insurance, maintenance, or management. A property with a great GRM can still be a poor investment if expenses are high. Always follow GRM screening with a full cash-flow analysis.
Single-family rentals typically have GRMs between 8 and 20 depending on location. The 1% rule (monthly rent = 1% of purchase price) is equivalent to a GRM of about 8.3. Markets where the 1% rule is achievable generally have GRMs in the 8 to 10 range.
The 1% rule states that monthly rent should equal at least 1% of the purchase price. This is equivalent to a GRM of about 8.33 (Price / (Price x 0.01 x 12) = 1/0.12 = 8.33). A property meeting the 1% rule has a GRM of 8.33 or lower.