Cap Rate Calculator

Written by Great Medico

Updated September 25, 2026 •2 min read

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Cap Rate Calculator turns the figures on the form into a focused planning result. It calculates capitalization rate from the property income measure in the numerator and property value in the denominator, so you can change an input and see how the scenario responds.

What this calculator does

Cap Rate Calculator calculates capitalization rate from the property income measure in the numerator and property value in the denominator. The visible inputs are annual net operating income (noi) and property value or purchase price. Its result is driven by those values, so the calculation can be reproduced or stress-tested without relying on a hidden live-data feed.

How to use it

Enter Annual net operating income (NOI) and Property value or purchase price. Keep all monetary inputs in the same currency; the currency selector formats results and does not perform foreign-exchange conversion. Before calculating, recheck Annual net operating income (NOI), Property value or purchase price against the source values you intend to model. Use the labels on Cap Rate Calculator as the source of truth and recheck any prefilled value before relying on the result.

How the calculation works

Cap rate = net operating income ÷ property value × 100%. The calculator uses the numerator and denominator entered on the form rather than estimating either one. Cap Rate Calculator applies that relationship only to the inputs represented on its form. If the result looks surprising, verify the entered values, units, and signs before interpreting the number.

Example

A property producing $30,000 of annual NOI and valued at $500,000 has a 6% cap rate. The example is a math check for Cap Rate Calculator; replace the sample values with your own inputs rather than treating the example as a target or recommendation.

How to interpret the result

A higher cap rate means more current NOI relative to price, but it can also reflect higher perceived risk, weaker growth expectations, or property differences. Cap rate is not the same as leveraged cash-on-cash return. For planning, keep a record of the assumptions used so a later recalculation can be compared on the same basis.

Limitations and notes

Cap rate depends on a consistent NOI definition and current property value. Financing, income taxes, appreciation, major future capital expenditures, lease rollover, and one-time costs are not captured by the ratio itself. Any factor not represented by a visible input remains outside the calculation.