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Net Operating Income (NOI) Calculator

Find the NOI and cap rate of a rental property.

How to use

  1. Enter your values in the fields above.
  2. Press Calculate to see your result instantly.
  3. Use the Share button to copy a link to your result.

About this calculator

This calculator finds a property's Net Operating Income (NOI): NOI = Gross Rental Income − Operating Expenses (excluding mortgage payments and capital expenditures), and its capitalization rate: Cap Rate = NOI / Property Value, expressed as a percentage.

Real estate investors, property managers, and commercial appraisers use NOI and cap rate to compare rental properties on an apples-to-apples basis regardless of how they're financed, and to gauge whether an asking price is reasonable for the income it produces. Enter the property's rental income and operating expenses (plus its value or purchase price) to get both figures.

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