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NUMOROX

Cap Rate Calculator

Capitalization rate from income and price — and, run backwards, the price a target rate justifies. The measure that prices the property rather than the deal.

Last reviewed

The address carries whatever you changed, so anyone opening it sees these numbers. Nothing is saved on our side.

Cap rate

5.68%

$19,872 of net operating income on a $350,000 price. At a 7% target the same income would justify $283,886 — below the asking price.

Gross annual income
$33,600
Less vacancy
$1,680
5% of gross
Less operating expenses
$12,048
Excludes the mortgage
Net operating income
$19,872
Price at 7%
$283,886
Difference to asking
$66,114

Your numbers

Results update as you type. Nothing is saved or sent anywhere.

Rent at full occupancy, before anything is deducted

Tax, insurance, management, repairs, reserves — not the mortgage

What comparable properties trade at in your market

What each cap rate is worth

The same income, priced at different yields. This is how a cap rate is used in practice — not to describe a deal you have, but to price one you are considering.

Price justified by this income at different cap rates
Cap ratePricevs yours
4%Above what you would pay$496,800−$0 more in total
5%Above what you would pay$397,440−$0 more in total
6%Below what you would pay$331,200−$0 more in total
7%yoursBelow what you would pay$283,886—
8%Below what you would pay$248,400−$0 more in total
10%Below what you would pay$198,720−$0 more in total

A higher cap rate means a lower price for the same income. That is the part that surprises people: a “better” cap rate is what a buyer wants and what a seller resists, and in a given market it reflects risk rather than skill. Cheap yields in a strong location and high yields in a weak one are usually both priced correctly.

What a cap rate deliberately leaves out

Its usefulness comes from what it ignores.

  • Your mortgage

    Excluded on purpose. Two buyers with different deposits and rates get the same cap rate on the same building, which is what makes it comparable.

  • Your tax position

    Depreciation and interest deductibility change the after-tax return substantially and depend on you, not the property.

  • Appreciation

    Cap rate is a measure of income today, not of what the building might be worth later.

  • Capital expenditure timing

    A roof due next year and one due in fifteen produce the same cap rate and very different first years.

How this calculator works

One division, and its inverse — which is the half people find more useful.

NOI = income − vacancy − operating expenses
cap rate = NOI ÷ price
price = NOI ÷ target cap rate

The third line is how the measure is actually used. You rarely want to know a property’s cap rate for its own sake — you want to know what price a given income justifies at the rate comparable buildings are trading at.

What is assumed

  • Operating expenses exclude the mortgage. Including it is the most common error and it makes the figure meaningless.
  • Income and expenses are stabilised — a normal year, not the year a boiler failed.
  • No tax, no financing, no appreciation.

A worked example

$33,600 of gross annual rent on a $350,000 property, 5% vacancy, $12,048 of operating expenses.

Cap rate on a $350,000 property, then run backwards
Gross annual income$2,800 a month
Less vacancy at 5%33,600 × 0.05
Less operating expensesTax, insurance, reserves, management
Net operating income33,600 − 1,680 − 12,048
Cap rate at the asking price19,872 ÷ 350,000
Price at a 7% target19,872 ÷ 0.07

If comparable buildings in the area trade at 7%, this income justifies $283,886 — $66,114 below the asking price. That gap is the negotiation, and it is a far more useful thing to walk in with than an opinion.

Questions people ask

The question has no general answer, and anybody who gives you one is guessing. Cap rates reflect risk and location: a stable building in a strong market trades at a low yield precisely because the income is dependable, and a high yield usually means the market is pricing in vacancy, condition or decline. What matters is how a property compares to genuinely similar ones nearby, which a local broker knows and a calculator cannot.

An estimate from figures you enter. It is not an appraisal, it excludes financing and tax entirely, and it says nothing about condition, lease terms or the market you are buying in.