How to use this cap rate calculator
Enter the property's purchase price or current market value, then input your gross annual rental income — the total rent you'd collect if the property were occupied year-round. Set a vacancy rate (5–10% is typical for residential) to calculate effective gross income. Then list your annual operating expenses: property taxes, insurance, maintenance, management fees, and any other recurring costs.
The calculator produces your Net Operating Income (NOI) — effective gross income minus operating expenses — and divides it by the property value to get the capitalization rate. You'll also see gross yield, expense ratio, and the gross rent multiplier (GRM) for a complete investment snapshot.
Understanding capitalization rate
The capitalization rate (cap rate) is the most widely used metric for evaluating income-producing real estate. The formula is simple: Cap Rate = NOI ÷ Property Value × 100. It tells you the annual return you'd earn if you bought the property with cash (no financing).
Cap rates are powerful for comparing properties because they strip out financing variables. Two investors can evaluate the same property with different mortgage terms and still agree on its cap rate. This makes it the standard language of commercial real estate analysis and a quick screening tool for residential investors.
However, cap rate has limitations. It doesn't account for appreciation, tax benefits, leverage, or capital expenditures. It's a snapshot of current income relative to current price — useful for comparison, but not a complete investment analysis. Pair it with cash-on-cash return, IRR, or total return metrics for a fuller picture.
Cap rate benchmarks by property type
Single-family rentals: Typically 4–8% depending on location. Properties in high-demand urban areas may have cap rates below 5%, while rural or lower-demand areas may exceed 8%.
Multi-family apartments: Generally 5–9%. Larger complexes with professional management tend to have lower cap rates due to perceived stability. Small 2–4 unit buildings in secondary markets often offer higher cap rates.
Commercial retail: Ranges from 5–10% depending on tenant quality and lease terms. NNN (triple net) leased properties with national tenants may trade at 4–6%, while local tenant properties often command 7–10%.
Industrial/warehouse: Often 5–8%. This sector has compressed cap rates recently due to e-commerce demand, especially for last-mile logistics facilities.
Common mistakes in cap rate analysis
Underestimating expenses: New investors often forget to include vacancy, maintenance reserves, and management costs. A property that looks like a 10% cap rate on paper may really be 6% once you account for all operating costs.
Using gross yield instead of cap rate: Gross yield (rent ÷ price) ignores expenses entirely. It's useful as a quick screen but can be misleading. A property with high gross yield but massive expenses may have a poor cap rate.
Comparing across different markets: A 5% cap rate in San Francisco is not the same risk profile as 5% in a small Midwest town. Always compare cap rates within the same market, neighborhood, and property type.
Ignoring capital expenditures: Cap rate uses operating expenses only. If the property needs a new roof or HVAC system soon, that cost isn't reflected in the cap rate but will significantly impact your actual returns.
Frequently Asked Questions
What is a good cap rate for rental property?
Cap rates vary by market, property type, and risk. In major US metros, 4–6% is common for residential. In smaller markets or higher-risk areas, 7–10% is typical. Commercial properties often range 5–12%. A higher cap rate means higher potential return but usually higher risk. Compare cap rates within the same market and property type for meaningful benchmarks.
What is the difference between cap rate and ROI?
Cap rate measures the property's return based on purchase price and net operating income, without considering financing. ROI includes financing costs, closing costs, and how you funded the purchase. Two investors buying the same property with different loan terms will have the same cap rate but different ROIs. Cap rate is useful for comparing properties; ROI is useful for evaluating your personal return.
Does cap rate include mortgage payments?
No. Cap rate is calculated before debt service — it uses Net Operating Income (NOI) divided by property value. Mortgage payments, loan interest, and principal repayment are excluded. This makes cap rate useful for comparing properties regardless of how they're financed.
What expenses should I include in the calculation?
Include all recurring operating expenses: property taxes, insurance, maintenance/repairs, property management fees, HOA dues, utilities (if landlord-paid), landscaping, pest control, and advertising. Do not include mortgage payments, depreciation, or capital expenditures (roof replacement, major renovations).
Does this calculator work for international properties?
Yes. Select your currency from the dropdown and enter values in your local currency. The cap rate formula is universal: NOI ÷ Property Value. The math works the same in any country. Just ensure you're using annual figures consistently.
Privacy and methodology
This calculator runs entirely in your browser — no property or financial data is sent to any server. Cap rate is calculated as NOI ÷ property value. NOI equals effective gross income (gross rent minus vacancy) minus total operating expenses. Results are estimates for comparison and planning purposes. Actual investment returns depend on financing, appreciation, taxes, and market conditions. This tool does not constitute investment advice.