Mortgage & real estate

Cap Rate Calculator

Divide a property's net operating income by its value to find the capitalization rate, the unleveraged annual return a rental property produces.

  • Free
  • No sign-up
  • Updated for 2026

Income & value

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Enter the income and value to see the cap rate.

Worked example

With these example inputs:

  • Net operating income (NOI)$60,000
  • Property value$1,000,000

Capitalization rate: 6.0%

  • Net operating income$60,000
  • Property value$1,000,000

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What this cap rate calculator does

This calculator finds your cap rate. You enter the income and the property value. The tool then shows the rate as a percent. It reveals the return on a property. This helps you judge a deal. You can test different figures. The result guides your investment choice.

What the cap rate is

The cap rate is a property return measure. It is short for capitalisation rate. It links income to the property price. It shows the yearly return as a percent. It assumes you pay all cash. It is widely used in real estate. It helps compare different deals.

How it is calculated

The calculation is simple to trace. You take the net operating income. Then you divide by the property value. You multiply the result by one hundred. That gives the cap rate. The calculator does this for you. The higher the percent, the higher the return.

Why the cap rate matters

The cap rate shows a property's income return. It strips out how you finance it. So you can compare deals fairly. A higher cap rate means more income. It also tends to mean more risk. It is a quick first screen. Use it to filter options.

A high versus low cap rate

A high cap rate means more income per price. But it can signal higher risk. The area or tenant may be weaker. A low cap rate means a pricier asset. It often sits in a safer area. Each suits a different investor. Balance return against risk.

Cap rate and property value

The cap rate also helps value a property. You can rearrange the formula. Divide the income by a target rate. That gives an estimated value. A lower cap rate lifts the value. A higher one lowers it. It is a handy valuation tool.

The limits of the cap rate

The cap rate has real limits. It ignores any financing costs. It assumes income stays steady. It is just a single snapshot. It says nothing about growth. It can miss future repairs. Use it with other measures.

How to use it

Enter the net operating income. Add the property value or price. Read the cap rate at once. Then try a different value. See how the rate changes. Compare a few properties. Use it to judge a deal.

Comparing properties by cap rate

The cap rate lets you compare deals. It puts each on the same scale. A higher rate means more income per price. But always weigh the risk. Compare within a similar area. A safer area often has lower rates. Use it alongside other checks.

Common mistakes to avoid

A common mistake is chasing a high cap rate alone. It often means more risk. Another is using gross income by mistake. You need net operating income. Some ignore future costs. Others forget it skips financing. Clear math helps you steer around them.

A final tip

Use the cap rate to compare property returns. But never judge on it alone. Weigh the income against the risk. Use net operating income, not gross. Remember it ignores your financing. Compare within a similar area. The cap rate is one tool, not the whole story.

Frequently asked questions

What is a cap rate?

It is annual net operating income as a percentage of a property's value, showing the return if you bought it outright with no mortgage.

What is net operating income?

NOI is rental income less operating expenses such as management, maintenance, insurance and taxes, but before mortgage payments.