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Rental investing

Cap rate calculator

Calculate capitalization rate from annual NOI and property value, or estimate the value implied by a target cap rate.

01 / YOUR INPUTS

Your numbers

USD $
$
Income after recurring operating costs, before debt service and income tax.
$
%
A scenario assumption, not a market recommendation.

Your inputs stay in this browser.

02 / YOUR ESTIMATE

Capitalization rate

6.86%

A one-year operating-income yield before debt service and income taxes.

Annual NOI$24,000.00
Monthly NOI$2,000.00
Property value used$350,000.00
Implied value at target cap rate$342,857.14
An estimate, with the working shown below.

What does this calculator do?

Cap rate puts a property’s annual operating income in relation to its value. Excluding debt helps compare the real estate independently of different loan terms. The implied-value calculation reverses that relationship: holding NOI steady, a higher target cap rate produces a lower supported value. Use consistent operating-cost definitions when comparing listings.

How to use it

  1. Build annual NOI from supportable collected income less recurring operating costs.
  2. Choose a purchase price or current value and clearly identify which you used.
  3. Use a target cap rate only as a valuation scenario, informed by comparable local transactions.

The math, made clear

Cap rate = annual NOI ÷ property value × 100; implied value = annual NOI ÷ target cap-rate fraction

A worked example

LET’S PUT NUMBERS TO IT

$24,000 annual NOI divided by $350,000 value gives a 6.86% cap rate. At a 7% target cap rate, that same NOI implies approximately $342,857 in value.

What to keep in mind

Cap rate excludes financing, acquisition costs, capital reserves, income taxes, and appreciation. It is a one-year income snapshot. Negative NOI produces a negative cap rate and no meaningful positive income-capitalization valuation. A higher cap rate can signal higher risk, not simply a better purchase.

All default values are illustrative. Results are rounded for display; calculations use full precision except where a split must allocate exact cents. Read our methodology for shared definitions and report a calculation issue if a result looks wrong.

Sources & data status

RentWise’s formulas and worked examples are implemented for this tool. Default amounts are illustrative, not official market statistics or live quotes. The references below explain related concepts; they do not endorse this calculator.

References checked October 17, 2026. Your lease, lender documents, local rules, or qualified adviser control transaction-specific questions. Our source and asset policy.

CLEAR ANSWERS

Questions about this calculator

Should I subtract the mortgage payment?

No. Debt service is excluded from NOI for this cap-rate calculation. Use the cash-flow tool for the impact of financing.

Is a higher cap rate always better?

No. It may reflect weaker location, deferred repairs, uncertain income, or another risk. Investigate why the income is priced differently.

Can I use gross rent instead of NOI?

No. That would ignore operating expenses and overstate the capitalization rate.