Cap Rate
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Cap Rate Calculator
Evaluate income property yield quickly using cap rate and NOI with investor-grade clarity.
Operating expenses do not include mortgage payments (principal/interest). Cap rate evaluates property performance as if purchased in cash.
Net Operating Income (NOI)
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Risk / Yield Indicator
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The Ultimate Cap Rate Calculator: Master Real Estate Valuation
Whether you are analyzing a multi-family apartment complex, a commercial retail space, or a single-family rental home, the Capitalization Rate (Cap Rate) is the golden metric of real estate investing. It is the universal language spoken by brokers, investors, and banks to quickly evaluate the profitability and risk of an income-producing property.
However, calculating an accurate cap rate requires pristine financial data. If you accidentally include your mortgage payment in your expenses, or forget to account for vacancy rates, your entire analysis will be catastrophically wrong. Our comprehensive Cap Rate Calculator does the financial heavy lifting for you. By isolating your Net Operating Income (NOI) and dividing it by the property's market value, this tool instantly reveals the true unleveraged yield of your investment, allowing you to compare properties apples-to-apples across different markets.
The Formula: How to Calculate Cap Rate
The cap rate represents the percentage return an investor would receive on a property in a single year if they bought it entirely in cash (without a mortgage). To find it, you need two critical numbers: Net Operating Income (NOI) and the Property Value.
The Standard Cap Rate Equation
Cap Rate = (Net Operating Income ÷ Current Market Value) × 100
Step 1: Calculating Net Operating Income (NOI)
Your NOI is simply your Gross Annual Income minus your Annual Operating Expenses.
- Include in Income: Base rent, parking fees, pet fees, coin laundry income.
- Include in Expenses: Property taxes, insurance, maintenance, property management fees, utilities, HOA fees, and vacancy reserves.
- DO NOT INCLUDE: Mortgage payments (principal and interest), depreciation, or capital expenditures (like buying a brand new roof). Cap rate measures the property's performance, not your financing choices.
Real-World Use Case: Analyzing a Duplex
Let's walk through a practical scenario. You are looking to buy a duplex listed for $500,000. Each unit rents for $2,000 a month.
- Step 1 (Gross Income): $4,000/month × 12 months = $48,000 Gross Annual Income.
- Step 2 (Operating Expenses): You estimate taxes, insurance, management, and maintenance will cost $16,000 per year.
- Step 3 (Calculate NOI): $48,000 - $16,000 = $32,000 NOI.
- Step 4 (Calculate Cap Rate): ($32,000 ÷ $500,000) = 0.064
The Result: 0.064 × 100 = 6.4% Cap Rate.
What is a "Good" Cap Rate? (The Risk vs. Reward Scale)
New investors often think "higher is always better." This is a dangerous misconception. In real estate, cap rate is a direct reflection of risk. A property offering a massive 12% cap rate is usually located in a declining neighborhood with terrible tenants, whereas a safe, brand-new building in a wealthy city might only offer a 4% cap rate.
| Cap Rate Range | Risk Profile | Typical Property Characteristics |
|---|---|---|
| 2% to 4% | Low Risk / Preservation | Class A properties. Luxury apartments in major coastal cities (NYC, LA, SF). Almost guaranteed appreciation, but very low cash flow. |
| 4% to 7% | Moderate / Stable | Class B properties. Solid working-class neighborhoods in growing suburban markets. A healthy balance of cash flow and appreciation. |
| 8% to 12%+ | High Risk / High Yield | Class C and D properties. Older buildings, high tenant turnover, frequent maintenance issues, and stagnant property values. Looks great on paper, but requires intensive management. |
Frequently Asked Questions
Why doesn't Cap Rate include my mortgage payment?
Cap rate evaluates the property, not the investor. If you buy a building in cash, and another investor buys the exact same building with a 10% down payment and a massive high-interest loan, your returns will be wildly different. By removing debt service from the equation, cap rate allows you to evaluate the raw earning power of the building itself.
What is the difference between Cap Rate and Cash-on-Cash Return?
Cap Rate assumes you bought the property in cash and measures the overall yield of the asset. Cash-on-Cash Return measures the exact return on the actual dollars you invested out of your own pocket. Cash-on-Cash includes your mortgage payment and only looks at your down payment, making it a better metric for measuring leverage.
Can I use Cap Rate for flipping houses or short-term rentals?
No. Cap rate is strictly designed for stable, long-term, commercial and residential rental properties with predictable annual income. If you are flipping a house, you use metrics like ARV (After Repair Value) and ROI. For Airbnbs, the income fluctuates too wildly month-to-month for a traditional cap rate to be reliable.
How do I use Cap Rate to find a property's value?
You can reverse-engineer the formula! In commercial real estate, properties are priced based on their income. If you know a building generates $100,000 in NOI, and similar buildings in that neighborhood trade at a 5% cap rate, you divide the NOI by the cap rate ($100,000 ÷ 0.05). The fair market value of that building is exactly $2,000,000.