Rental, Investment and Commercial Real Estate

Cap Rate Calculator Real Estate

Calculate stabilized net operating income, capitalization rate, value at a target cap rate, gross rent multiplier, vacancy allowance, and operating expense ratio.

Stabilized NOIGoing-in cap rateTarget-cap valuationGross rent multiplier

Calculation inputs

Calculate NOI and capitalization rate

Enter stabilized property income, vacancy, operating expenses, and the value being tested.

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How the calculation works

Understand the formula before relying on the result

Stabilize income

Potential rent and other income are reduced by vacancy before expenses.

Calculate NOI

Operating expenses are deducted from effective gross income; debt service and income tax are excluded.

Calculate cap rate

Annual NOI is divided by the entered property value or purchase price.

Test target value

NOI is divided by the selected target cap rate to estimate an implied value sensitivity.

Interpret the result

Cap rate is unlevered

It measures property income relative to value before financing.

Small assumptions matter

Vacancy and expense adjustments can materially change NOI and therefore cap rate.

Target value is not an appraisal

A cap-rate valuation is one income-based sensitivity and does not replace market evidence or appraisal analysis.

Compare like with like

Property type, location, lease quality, age, and expense treatment must be comparable.

Common mistakes

  • Using gross rent instead of NOI.
  • Excluding realistic vacancy.
  • Treating capital work or debt service inconsistently.
  • Applying a market cap rate from a different asset class or location.
  • Using one year of unusual income without normalization.

What lenders review

  • Appraised market value and comparable transactions.
  • Rent roll, leases, tenant quality, and rollover risk.
  • Normalized NOI and expense evidence.
  • Property condition, environmental, zoning, and market factors.
  • DSCR, debt yield, LTV, and sponsor strength.

Planning tips

  • Calculate NOI separately before applying a cap rate.
  • Run more than one vacancy and expense scenario.
  • Test a range of cap rates rather than one point estimate.
  • Compare cap rate with debt yield and DSCR.
  • Use lender or appraiser methodology for a financing decision.

Connected HopeWell knowledge

Connect the cap rate calculator to the mortgage decision

Use the result alongside HopeWell's guide chapters, glossary definitions, real underwriting case studies, service pages, and related calculators.

Calculation pathway

Related mortgage calculators

Continue into qualification, purchase costs, equity, refinancing, HELOC planning, and mortgage comparison using the connected calculators below.

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Frequently asked questions

Questions about this calculation

How do you calculate cap rate?

Divide annual net operating income by property value and multiply by 100.

Does cap rate include mortgage payments?

No. Cap rate is calculated before debt service.

What happens when the target cap rate increases?

For the same NOI, the implied value decreases.

Can cap rate be negative?

Yes, when normalized operating expenses exceed effective gross income, although the result signals a distressed or invalid operating scenario.

Is a higher cap rate always better?

Not necessarily. Higher cap rates may reflect higher risk, weaker location, lease risk, property condition, or limited growth expectations.