Commercial Cap Rate Calculator
Calculates the capitalization rate for a commercial property by dividing NOI by property value, adjusted for vacancy. Use it to compare investment returns across different properties or markets in seconds.
About this calculator
The capitalization rate (cap rate) expresses a property's annual income as a percentage of its value, giving investors a quick, financing-neutral return metric. The formula is: Cap Rate = [(Gross Rental Income × (1 − Vacancy Rate) − Operating Expenses) / Property Value] × 100. The numerator is Net Operating Income (NOI) — gross rent reduced by vacancy and then by operating costs. The denominator is the current market value or purchase price. A higher cap rate signals higher return but often implies higher risk or a weaker market. Cap rate is also used in reverse: if you know the market cap rate and a property's NOI, you can estimate what the property should be worth (Value = NOI / Cap Rate). This makes it essential for both acquisition analysis and property appraisal.
How to use
A retail strip center has gross annual rent of $300,000, a 7% vacancy rate, and $85,000 in operating expenses. It is listed at $2,000,000. Step 1: Effective income = $300,000 × (1 − 0.07) = $279,000. Step 2: NOI = $279,000 − $85,000 = $194,000. Step 3: Cap Rate = ($194,000 / $2,000,000) × 100 = 9.7%. Enter your numbers into the fields and instantly see whether this cap rate meets your investment threshold.
Frequently asked questions
What is a good cap rate for commercial real estate in today's market?
Cap rates vary significantly by property type, geography, and economic cycle. Class A multifamily in gateway cities may trade at 4–5%, while industrial assets in secondary markets might yield 6–8%, and net-lease retail in tertiary markets could reach 8–10%. A 'good' cap rate depends on your risk tolerance, cost of capital, and local comparables. As a rule of thumb, the cap rate should exceed your borrowing rate by a meaningful margin — often called positive leverage — to ensure cash flow after debt service.
How does vacancy rate affect the cap rate calculation for commercial properties?
Vacancy rate reduces Effective Gross Income before operating expenses are subtracted, compressing the NOI and therefore the cap rate. A 5% increase in vacancy on a $400,000 gross income property reduces income by $20,000, which on a $2M property drops the cap rate by a full percentage point. Buyers should use a stabilized or market vacancy rate rather than current occupancy to avoid overpaying for a temporarily fully-leased property. Sellers, conversely, may argue for lower vacancy assumptions to justify a higher asking price.
What is the difference between cap rate and cash-on-cash return for real estate investors?
Cap rate ignores financing entirely — it measures the property's return as if purchased with all cash. Cash-on-cash return measures the actual cash income relative to the equity you invested, including the effect of leverage. If you finance 70% of a purchase, your cash-on-cash return can be significantly higher or lower than the cap rate depending on whether your borrowing rate is below or above the cap rate. Cap rate is best for comparing properties uniformly; cash-on-cash is best for evaluating your personal investment performance given your specific financing.