Deal Analysis
Gross Rent Multiplier Calculator
Screen deals fast with the gross rent multiplier and implied price at a target GRM.
Calculation breakdown
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How rental property returns work
The gross rent multiplier, or GRM, is one of the fastest ways to screen rental property deals. It compares a property price to the gross rental income it generates, giving you a single number you can use to rank properties before doing deeper analysis. The formula is simple: GRM = property price divided by annual gross rent. A lower GRM means you are paying less for each dollar of rent the property produces, which generally signals a better deal — though GRM ignores expenses entirely, so it is only a first filter. For example, a $200,000 property that rents for $2,000 per month has annual gross rent of $24,000 and a GRM of about 8.3. A property with the same rent priced at $250,000 has a GRM of 10.4. All else being equal, the first property looks better because you are paying less for the same income stream. GRM is most useful when comparing similar properties in the same market. Typical GRMs range from 6 to 12 in many US markets, with lower numbers in cash-flow markets and higher numbers in expensive coastal areas. Because GRM does not account for vacancy, operating expenses, or financing, two properties with the same GRM can have very different cash flows once you dig deeper. You can also use GRM in reverse. If you know a market typical GRM and a property gross rent, the implied price = GRM × annual gross rent. That tells you what a property should be worth based on local norms, helping you spot under- or over-priced deals at a glance. Use GRM as a quick screen, then confirm with cap rate and cash-on-cash return before making an offer.
Worked example
You are screening a triplex listed for $360,000. It rents for $3,600 per month, so annual gross rent is $3,600 × 12 = $43,200.
GRM = $360,000 / $43,200 = 8.3. That is on the attractive end of the typical 6–12 range, so the deal is worth a closer look.
If comparable triplexes in the area typically trade at a GRM of 9, the implied price is 9 × $43,200 = $388,800. Since the asking price of $360,000 is below that implied value, the property appears priced below market norms for its income — a promising signal, provided the expenses and condition check out.
Frequently asked questions
What is a good gross rent multiplier?
In many US markets, GRMs range from 6 to 12. A lower GRM generally means you are paying less for each dollar of rent, which is more attractive. In expensive coastal markets, GRMs are often higher because property values are high relative to rents. GRM is best used to compare similar properties in the same market.
Does GRM account for expenses?
No. GRM uses gross rental income only and ignores vacancy, operating expenses, and financing. Two properties with the same GRM can have very different cash flows once expenses are included. Use GRM as a quick first screen, then confirm with cap rate or cash-on-cash return.
How is GRM different from cap rate?
GRM divides price by gross rent and ignores all expenses. Cap rate divides net operating income (rent minus vacancy and operating expenses) by price. Cap rate is more complete because it accounts for expenses, while GRM is faster but rougher. Many investors use GRM to screen, then cap rate to decide.
What is the implied price at a target GRM?
If you know the typical GRM for a market and a property gross rent, implied price = target GRM × annual gross rent. That tells you what a property should be worth based on local norms. If the asking price is below implied price, the deal may be underpriced relative to its income.
Should I enter monthly or annual rent?
The calculator lets you enter monthly rent and multiplies it by 12 automatically, or you can enter annual gross rent directly. Use whichever figure you have. The GRM formula always uses annual gross rent, so the calculator handles the conversion for you.
More Deal Analysis tools
- Rental Property Calculator Analyze cash flow, cash-on-cash return, cap rate, and GRM for any rental property.
- Cap Rate Calculator Calculate net operating income and capitalization rate for any rental property.
- Cash-on-Cash Return Calculator Measure the annual return on the actual cash you put into a rental property deal.
- Rental Yield Calculator Calculate gross and net rental yield to compare income relative to property price.
- 1% Rule Calculator Check whether a rental deal meets the 1% rule and see the rent needed to pass.
- ARV Calculator Estimate after-repair value and maximum allowable offer for a fix-and-flip or BRRRR deal.