About Cap Rate Calculator
Cap Rate Calculator is a free, independent website that helps people understand the income return of rental and commercial property. It combines a transparent calculator with plain-language guides, in 53 languages.
Who it is for
The site is made for private landlords, first-time investors, students of real estate and property managers who want a quick, dependable first look at a property. Experienced investors use it as a fast sanity check before they build a full financial model.
How the calculations work
The calculator follows the standard income approach. It turns rent and other income into effective gross income, deducts operating expenses to arrive at net operating income, and divides NOI by the price. Optional loan details add cash flow, cash-on-cash return and the debt service coverage ratio, and a reverse calculation turns a target cap rate into a property value.
Every formula is published on the calculator page, and results are rounded only for display, so you can retrace each step by hand.
53 languages
Every page is available in 53 languages, so that people can work in the language they think in. Translations are checked carefully, but mistakes are possible. If you spot one, please tell us through the contact page and include the address of the page.
Free and without advertising
There is no advertising, no account and no paid feature. Calculations run entirely in your browser; the privacy policy explains how the site handles data.
Limits of this tool
The calculator and the guides are for education and information. They do not replace advice from a qualified financial, tax or legal professional who knows your situation.
Get in touch
Questions, corrections and suggestions are welcome.