Cap Rate Calculator
Determine the capitalization rate of a commercial property by dividing net operating income by purchase price, and estimate the gross rent multiplier.
What Is a Cap Rate?
The capitalization rate (cap rate) is the most widely used metric for valuing income-producing commercial real estate. It expresses the relationship between a property's net operating income (NOI) and its market value as a percentage: Cap Rate = NOI / Property Value. A property generating $100,000 NOI with a $1,500,000 value has a 6.67% cap rate. Inversely, if you know the market cap rate and a property's NOI, you can determine its value: Value = NOI / Cap Rate. Cap rates function as a risk-return shorthand. Lower cap rates (3-5%) indicate lower perceived risk and higher demand, typical of prime assets in major metros (Manhattan office, prime industrial in logistics corridors). Higher cap rates (7-12%) reflect greater risk, weaker locations, older buildings, or shorter remaining lease terms. The cap rate is effectively the unlevered yield an investor earns if paying all cash. The Gross Rent Multiplier (GRM) is a simpler valuation metric: Purchase Price / Annual Gross Rent. A property selling for $1.5M with $150K gross rent has a GRM of 10. GRM is less precise than cap rate because it ignores operating expenses, but it is useful for quick preliminary screening and comparing similar properties in the same market.
How to Use This Calculator
Enter the Purchase Price
Input the asking price, contract price, or appraised market value. If analyzing a potential acquisition, use the asking price first to determine if the cap rate meets your criteria, then model your offer price to achieve your target cap rate (Target Price = NOI / Your Target Cap Rate).
Input Net Operating Income
NOI is gross rental income minus all operating expenses (property taxes, insurance, maintenance, property management fees, utilities paid by owner, reserves) but before debt service and income taxes. Use stabilized NOI (adjusting for below-market rents, unusual vacancies, or one-time expenses) rather than trailing 12-month actuals if conditions have changed.
Add Gross Income for GRM
Enter total scheduled gross rental income (all units at market rent, before vacancy). GRM is a quick screening tool: lower GRM means you are paying less per dollar of rent, generally more favorable. But GRM does not account for expenses, so a low-GRM property with high expenses may have a worse cap rate than a high-GRM property with low expenses.
Interpret Results Against Market Benchmarks
Compare your calculated cap rate to market comparables. Cap rate varies by property type, location, and market cycle. National averages (2024-2025): multifamily 5.0-6.5%, industrial 5.5-7.0%, office 6.5-9.0%, retail 6.0-8.5%. Your local market may differ significantly.
Key Concepts
Capitalization Rate
The ratio of a property's net operating income to its value, expressed as a percentage. Cap Rate = NOI / Value. It represents the unlevered return (yield) an investor receives on an all-cash purchase. Lower cap rates imply higher property values for the same income stream.
Net Operating Income (NOI)
Total property income minus operating expenses, but before debt service and income taxes. NOI is the foundation of commercial real estate valuation. It includes rental income, CAM reimbursements, parking income, and other property revenue, minus vacancy loss, property management, taxes, insurance, repairs, and utilities.
Gross Rent Multiplier (GRM)
A simplified valuation metric: Purchase Price / Annual Gross Rent. Quick to calculate but less precise than cap rate because it ignores operating expenses. Useful for comparing similar properties in the same submarket where expense ratios are roughly equivalent.
Cap Rate Compression
When cap rates decline (meaning property values increase relative to income), typically due to increased investor demand, falling interest rates, or improving market fundamentals. Cap rate compression in the 2010-2021 period drove significant value appreciation across CRE. The 2022-2024 period saw expansion (rising cap rates) as interest rates increased.
Expert Insights
Cap Rate Is Not Return on Investment: A common mistake: treating cap rate as your investment return. Cap rate measures unlevered yield on the property value. Actual investor return (cash-on-cash, IRR) depends on leverage, financing terms, tax benefits, and appreciation. A 6% cap rate property purchased with 70% LTV at a 5.5% interest rate generates a much higher cash-on-cash return due to positive leverage (the property earns more than the cost of debt).
Beware of Pro Forma Cap Rates: Sellers and brokers frequently market properties using "pro forma" cap rates based on projected rents after renovation, lease-up, or rent increases rather than actual current income. Always calculate the cap rate using current in-place NOI (the "going-in" cap rate). The difference between in-place and pro forma cap rates represents execution risk that you, not the seller, bear.
The Interest Rate Spread Matters: The spread between cap rates and borrowing rates determines whether leverage is accretive (positive) or dilutive (negative). When cap rates exceed borrowing rates, debt increases returns. When borrowing rates exceed cap rates (as happened in 2023-2024), debt actually reduces your return below the unlevered yield. Monitor the spread; if it is negative, buying with less leverage or all cash may be smarter.
Frequently Asked Questions
Results are estimates for educational purposes only. Actual amounts may vary based on your specific financial situation, market conditions, and other factors. This calculator does not constitute financial advice.
Run These Numbers Too
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Determine whether a commercial property's net operating income sufficiently covers its debt obligations, the key metric lenders use for loan qualification.
Commercial Real Estate ROI Calculator
Calculate total investment returns including cash-on-cash yield, ROI, equity build-up, and appreciation for leveraged commercial property investments.
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