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Net Operating Income (NOI) Calculator

NOI = gross income − vacancies − operating expenses.

Compute net operating income (NOI) for a rental / commercial property: gross potential income, less vacancy & credit losses, less operating expenses. Excludes financing costs and income taxes; used as the numerator in the cap-rate formula.

Nadia Almasri By Nadia Almasri
Published Last reviewed 1 min read

Inputs

$
%
$

Results

Enter values and click Calculate to see results.
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How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

NOI = Gross income · (1 − vacancy %) − Operating expenses

In depth

Compute net operating income (NOI) for a rental / commercial property: gross potential income, less vacancy & credit losses, less operating expenses. Excludes financing costs and income taxes; used as the numerator in the cap-rate formula.