ποΈ Gross Rent Multiplier Calculator
Price per dollar of rent.
Gross rent multiplier
Estimates for planning only, not financial advice.
Gross rent multiplier is price divided by gross annual rent: how many years of rent the purchase price represents. A $400,000 property renting for $36,000 a year has a GRM of 11.1, or a 9.0% gross yield. Lower GRM means cheaper rent per dollar of price; investors screen deals on this number first.
How to Use This Calculator
Enter the property price and the gross annual rent (monthly rent times 12, before expenses). The calculator returns GRM and the implied gross yield.
Enter the purchase price.
Enter gross annual rent.
Read GRM and gross yield. For the full cash-flow picture, our rental property calculator adds expenses and financing.
The GRM Formula
GRM is a screening tool, not a valuation: it ignores expenses, vacancy, taxes, and financing, which is exactly why it is fast. A GRM of 11 means the price is 11 years of gross rent; the reciprocal, 9%, is the gross yield before any costs. Markets price GRMs differently: 7-10 is common in cash-flow markets, 15-25 in appreciation markets where rent cannot justify prices. Comparing GRMs across different market types is meaningless.
Worked Example
$400,000 price, $36,000 gross rent: GRM = 11.1, gross yield 9.0%. A competing property at $380,000 renting for $36,000 has a GRM of 10.6, cheaper per rent dollar. But the screening can mislead: if the $400,000 property needs no repairs and the $380,000 one needs $40,000 of work, the effective GRMs are 11.1 versus 11.7, flipping the ranking. GRM starts the analysis; it never finishes it.
What Is a Good GRM
Lower is better for cash flow, with 8-12 the typical buy zone for income investors. Above 15, the deal only works on appreciation, which is speculation wearing an investment costume. But local norms rule: a GRM of 20 can be normal in San Francisco and absurd in Memphis. Always compare within the submarket, and always follow a good GRM with real underwriting: vacancy, taxes, insurance, maintenance, and management.
My filter: GRM under 12 gets a full analysis; 12-15 gets a skeptical look; over 15 needs an appreciation story I can defend with supply constraints, not hope. And never trust a GRM built on pro forma rents: use actual leases or verified market rent, because inflated rent assumptions are the oldest trick in the listing book.
Estimates for planning only, not financial advice.
Frequently Asked Questions
What is gross rent multiplier?
Property price divided by gross annual rent. It shows how many years of rent the price represents and lets investors compare deals quickly. Lower GRM means better cash flow per dollar of price.
What is a good gross rent multiplier?
Typically 8-12 for cash-flow investing. Above 15 usually needs appreciation to work. But norms vary hugely by market: compare within the local submarket, never nationally.
How is GRM different from cap rate?
GRM uses gross rent and ignores expenses; cap rate uses net operating income after expenses. GRM is faster for screening, cap rate is truer for valuing. Use GRM first, cap rate second.
Should I use monthly or annual rent?
Annual, by convention: price divided by gross annual rent. Using monthly rent gives a monthly GRM twelve times larger, which confuses every comparison. Multiply monthly by 12 first.
Does GRM account for expenses?
No, deliberately not. That is its strength for speed and its weakness for decisions. Two properties with identical GRMs can have very different net yields after taxes and maintenance.
What GRM do investors target?
Cash-flow investors often screen below 10-12. House hackers accept higher for the owner-occupied benefits. Flippers ignore GRM entirely since rent is not the strategy.
Can GRM be too low?
Suspiciously low GRMs signal problems: bad area, deferred maintenance, or inflated rent figures. A GRM of 5 on a standing property deserves investigation, not celebration.
How do I verify the rent in a GRM?
Use actual leases, not pro forma projections. Check comparable rents nearby and vacancy rates. Inflated rent assumptions are the most common way listings manufacture attractive GRMs.
What is the 1% rule in real estate?
Monthly rent should be at least 1% of the purchase price, equivalent to a GRM of 8.33 or less. It is a stricter cash-flow screen than GRM alone and rare in expensive markets.
Can GRM value commercial property?
Roughly for small multifamily, but commercial valuation properly uses cap rates on net operating income. GRM breaks down with triple-net leases and variable expenses.
How accurate is GRM for pricing?
It is a relative screen, not an appraisal: two analysts with the same GRM can defend different prices. Use it to rank opportunities, then price with cap rates, comparables, and inspection.
What GRM did the 1% rule imply again?
A GRM of 8.33: monthly rent at 1% of price means annual rent is 12% of price, so price divided by annual rent is 8.33. Properties meeting the 1% rule always screen well on GRM.