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Gross Rent Multiplier Calculator

Range: 0.01 – 1,000,000,000

Range: 0.01 – 1,000,000,000

Range: 0.01 – 1,000

Result

15.63

Gross rent multiplier

Annual gross rent
19,200.00
Gross rent yield
6.40%
Value at target multiplier
288,000.00

A gross rent multiplier (GRM) is the simplest yardstick in property: the price of a building divided by the rent it collects in a year, before any expenses at all. A price of 300,000 against 19,200 of annual rent gives a multiplier of 15.63 — roughly fifteen and a half years of rent to pay for the property. Read it the other way and it is a gross yield of 6.40 percent. Both describe the same relationship and both are deliberately crude: the numerator has every cost of owning the building still in it, so the figure says nothing about whether the property makes money, only about what it costs relative to the income on the surface. That crudeness is the reason it survives. Because there are only two numbers and neither of them requires an estimate, a gross rent multiplier can be computed for a building in seconds from a listing, and it can be compared across properties, neighbourhoods and markets without anyone having to agree on how to allocate a roof repair. What it cannot do is separate a well-run building from a badly run one, and it cannot tell you what a property is worth — only what it costs relative to its rent.

What 19,200 a year of rent pays for at six multipliers

Gross rent multiplierAnnual gross rentImplied property valueGross rent yield
61920011520016.67
81920015360012.5
101920019200010
12192002304008.33
15192002880006.67
20192003840005

The axis is the multiplier, because that is the number a buyer moves when asking what a rent is worth — the rent is fixed by the property and the question is what multiple to apply to it. The rent is held at 1,600 a month, the page's default, so any row can be reproduced by setting the first field and leaving the others alone. Read the last column against the first: they are exact reciprocals, so the top row pays 16.67 percent gross and the bottom row 5.00, and every row between them is the same statement made in a different unit. The middle column is where the money is: at a multiple of 10 the same rent supports a 192,000 price, and at 20 it supports 384,000, which is the entire argument about property valuation compressed into one column. The fifth row is the target multiple the page's own defaults use, and it is the row that carries the decision: 15 times rent gives 288,000, four percent below the 300,000 asking price. Nothing here is a statement about which multiple is right; the table shows what each one implies and leaves the choice where it belongs.

Formula

Annual gross rent = monthly rent × 12; gross rent multiplier = property price ÷ annual gross rent; gross yield = 100 ÷ gross rent multiplier; value at a target multiplier = target multiplier × annual gross rent

Property price
The price being asked, or the price that was paid. It is the numerator and the whole basis of comparison, so it has to be the same kind of figure on both sides of a comparison — a list price against a sale price, or a price that includes closing costs against one that does not, will produce a difference that has nothing to do with the properties. Whether the number is the asking price or the closing price matters less than being consistent about it.
Monthly gross rent
The rent collected per month, before vacancy, before taxes, insurance, management and maintenance, and before any mortgage. Gross is the operative word: this page is built on the figure as advertised, and that is what makes it fast and what makes it misleading if it is mistaken for profit. Vacancy allowance in particular is excluded, so a building that is empty two months a year will look the same here as one that is always full.
Annual gross rent
The monthly figure multiplied by twelve, printed because every other number on the panel is built from it and because the multiplication is where an annualisation mistake would hide. Twelve is a convention rather than a measurement: it ignores the fact that rents change, that a month may be vacant, and that some leases bill differently, all of which belong to a fuller analysis.
Gross rent multiplier
Price divided by annual rent, printed to two decimals. Lower means the property costs fewer years of rent, which is generally what a buyer wants, though a low multiplier and a good investment are not the same claim — a cheap building in a district where rents are falling is cheap for a reason. It is the number most often quoted in listings and the one most often quoted without the expenses that would change the picture.
Gross yield
The reciprocal of the multiplier, expressed as a percentage: rent as a share of price. It carries exactly the same information as the multiplier and is shown because the two are used in different conversations — a yield is what a return-seeking buyer compares against a bond, and a multiplier is what a listing quotes. Watch the one coincidence: at a multiplier of exactly 10 the two are equal at 10 percent, which is a property of the decimal system and not a relationship to rely on.
Value at a target multiplier
What the same rent would pay for at a multiplier you choose, which turns the calculation around from what a price yields to what price your standard justifies. Enter the multiplier a buyer in that market typically pays and the page gives the price the rent supports. It is a field rather than an assertion: the page has no opinion about what the right multiple is, and a target of 15 applied to the default rent gives 288,000 rather than the 300,000 being asked.

Use it as a first filter when a listing has a price and a rent and nothing else, which is the situation it was invented for. It is fast, it needs no assumptions, and it will tell you in one division whether a property is in the range you are shopping in or an order of magnitude away from it. It is also useful for screening a long list down to a short one before spending time on the expense estimates that a proper analysis requires. Where it must not be used is as a verdict. It cannot distinguish a building with a new roof from one that needs replacing, a tenant paying market rent from one paying half of it, a market where rents are rising from one where they are falling, or a property with one tenant from one with twelve and the vacancy risk that brings. It also says nothing about financing: two buyers paying the same price for the same building, one in cash and one with a mortgage, have the same gross rent multiplier and completely different returns. The gross rent multiplier is the beginning of a rental property analysis, and treating it as the end of one is the mistake it invites.

Worked examples

  1. The default: a 300,000 property renting for 1,600 a month

    1. Annual gross rent: 1,600 × 12 = 19,200
    2. Gross rent multiplier: 300,000 ÷ 19,200 = 15.625, printed as 15.63
    3. Gross yield: 100 ÷ 15.63 = 6.40 percent
    4. Value at a target multiple of 15: 15 × 19,200 = 288,000

    The property costs fifteen and two thirds years of rent, which is a gross yield of 6.40 percent — before a single expense. The fourth figure is the one that carries a decision: a buyer who will not pay more than fifteen times rent values this building at 288,000 against a 300,000 asking price, so the two are 4 percent apart. That gap is the entire negotiation, and it was reached without knowing anything about the building beyond two numbers.

  2. Where the multiplier and the yield coincide

    1. Annual gross rent: 2,000 × 12 = 24,000
    2. Gross rent multiplier: 240,000 ÷ 24,000 = 10.00
    3. Gross yield: 100 ÷ 10.00 = 10.00 percent
    4. Value at a target multiple of 10: 10 × 24,000 = 240,000

    A multiplier of exactly 10 and a yield of exactly 10 percent — the one point where the two numbers are equal, because 100 divided by 10 is 10. It is an artefact of counting in tens and not a rule: at a multiplier of 8 the yield is 12.5 percent, and at 12 it is 8.33. Worth seeing once so the coincidence does not get mistaken for a relationship. The target multiple also matches the actual one here, so the implied value equals the price and there is nothing to negotiate.

  3. The rounding seam: 144,120 against 24,000 of rent

    1. Annual gross rent: 2,000 × 12 = 24,000
    2. Gross rent multiplier: 144,120 ÷ 24,000 = 6.005, printed as 6.01
    3. Gross yield: 100 ÷ 6.01 = 16.639, printed as 16.64 percent

    This one sits exactly on the rounding boundary, and it shows a choice the page makes deliberately: the yield is computed from the multiplier as printed, not from the price and the rent directly. Computing it directly would give 16.65 percent, a hundredth of a point higher, because 6.005 rounded down would be the more natural reading of the raw division. Deriving it from the printed 6.01 means every figure on the panel can be checked against the others by hand — divide 100 by the multiplier shown and you get the yield shown, exactly. The cost is that a property sitting exactly on the boundary reports a yield a hundredth of a point away from the one its own price and rent imply, which is the smaller of the two errors to live with.

  4. Filling the printed multiple back in

    1. Annual gross rent: 1,600 × 12 = 19,200
    2. Gross rent multiplier: 300,000 ÷ 19,200 = 15.625, printed as 15.63
    3. Gross yield: 100 ÷ 15.63 = 6.40 percent
    4. Value at a target multiple of 15.63: 15.63 × 19,200 = 300,096

    The target field is an input rather than an assertion, and this is what that means in practice: entering the multiplier the page just printed does not return the price it started from, it returns 300,096 — ninety-six more than the 300,000 asking price. The difference is the two decimals that were discarded when 15.625 was printed as 15.63; multiplying the rounded figure back up compounds the rounding across 19,200. It is not an error and the page does not try to hide it, but it is a reminder that these figures are conveniences for comparing properties rather than exact descriptions of them.

  5. A yield that rounds away entirely

    1. Annual gross rent: 0.01 × 12 = 0.12
    2. Gross rent multiplier: 1,000,000,000 ÷ 0.12 = 8,333,333,333.33
    3. Gross yield: 100 ÷ 8,333,333,333.33 = 0.000000012, printed as 0.00 percent
    4. Value at a target multiple of 15: 15 × 0.12 = 1.8

    A billion against a rent of one hundredth a month gives a multiplier of more than eight billion and a gross yield that rounds to 0.00 percent. The yield is not missing, it is smaller than a hundredth of a percent: dividing 100 by the multiplier gives about 0.000000012. The inverse relationship is worth noticing at this extreme — the multiplier is the largest this page will print and the yield is the smallest, and they are two views of one number rather than two independent results.

Limitations

The multiplier is gross, and gross is a real limitation rather than a technicality. Property taxes, insurance, management fees, maintenance, utilities the owner carries, and vacancy all come out of the rent before an owner sees anything, and none of them are in the numerator here. Two buildings with the same multiplier can differ by half in what they actually return, and the page has no way to show it. The rent is taken as a single monthly figure, which means a building with a vacant unit, a tenant on a below-market lease, or a rent that steps up next year is all described as though none of that were true. Financing is excluded by design, so the figure is comparable between a cash buyer and a borrower and simultaneously silent about what either of them would earn on their money. The price is taken as given, when in most transactions the price is the thing being negotiated. Above all, a multiplier has no absolute meaning: what counts as high or low depends entirely on the market, on the prevailing cost of borrowing, on expectations for rents and on how much of the local stock is owned by people who are not seeking yield at all. Comparing a multiplier against a number you decided in advance is good is the way this measure is most often misused, and the page prints the target as a field rather than a recommendation for exactly that reason.

Frequently asked questions

Should I use gross rent or net operating income?
They answer different questions and the choice depends on what you have. Gross rent is what the listing gives you and needs no estimates, so a gross rent multiplier is the right tool for a first pass over a long list. Net operating income requires knowing the expenses, and the cap rate built on it is the right tool once you have them. The failure mode is mixing the two: a multiplier computed on net income will be far lower than the market's and a cap rate computed on gross rent will be far higher than the market's. If a listing quotes both a price and a multiplier, check which rent it used.
What is a good gross rent multiplier?
There is no universal figure, and any specific number presented as a rule should be treated with suspicion. What counts as low or high depends on the market, on interest rates, on how fast rents are expected to grow and on how much of the local stock is bought by owner-occupiers rather than investors. In a market where investors accept a 4 percent gross yield, a multiplier of 25 is normal; in one where they want 10 percent it would be absurd. The only useful comparison is against what similar buildings in the same market are actually trading at, which is information the page cannot supply.
Why is the gross rent multiplier the same for a cash buyer and a borrower?
Because the mortgage does not appear anywhere in the calculation. Price is divided by rent, and neither figure changes when a loan is involved — which is precisely what makes the measure comparable between two buyers looking at the same building on different terms. The cost is that it says nothing about what either buyer earns. A heavily mortgaged purchase can produce a large return on the cash invested or none at all depending on the rate, and the multiplier is identical in both cases.
Does vacancy get subtracted before the rent figure?
No. The rent here is gross, meaning the figure as it appears in a listing or a lease, with no allowance for months when the unit is empty. A building that sits vacant two months a year therefore looks exactly as attractive here as one that is always let. If you want that reflected, the honest way is to enter the rent you actually expect to collect across the year, divided by twelve — which keeps the arithmetic of this page intact while making the input tell the truth.
Why does the yield not always match the price divided by rent?
Because it is computed from the multiplier as printed rather than from the price and rent directly. The multiplier is rounded to two decimals first, and dividing 100 by that rounded figure can differ from dividing rent by price in the last hundredth of a point. The page makes this trade on purpose: it means the yield on the panel can be reproduced by hand from the multiplier shown next to it, and the alternative would leave every figure on the panel reproducing every other one except that pair.
How is this different from a cap rate?
Only in the numerator, and that is the whole difference. A gross rent multiplier uses gross rent; a cap rate uses net operating income, which is the rent after vacancy and operating expenses. Since expenses are positive, net income is always smaller, so a cap rate always looks like a lower number than the gross yield on the same property — and the gap between the two is exactly what it costs to run the building. If you have both figures, the size of that gap is a quick read on how expensive the property is to operate.
Can I use the multiplier to value a property?
Only in the circular sense that it tells you what a rent pays for at a multiple you chose. The multiplier does not tell you what a building is worth; it tells you what it costs relative to its rent, and turning that into a value requires knowing the multiple the market pays — which is the number you were trying to find. What it can legitimately do is let you apply a market multiple to a rent, or compare the multiple a seller is asking against the range you have observed elsewhere, and those are useful operations as long as the market figure came from somewhere real.

References

Related calculators

Cap Rate CalculatorCapitalization rate from a property's income and value.Net Operating Income CalculatorNet operating income from rent less operating expenses.LTV CalculatorLoan-to-value ratio from a loan and an appraised value.Return on Investment CalculatorReturn on investment as a percentage and a multiple.