Cap Rate Calculator
Cap Rate Calculator
Choose a mode, enter your property details, and see live investment analysis.
Capitalization Rate
7.33%
What Is the Cap Rate Definition?
The capitalization rate — almost always shortened to Cap Rate — is the unlevered annual rate of return that an income-producing property is expected to generate, expressed as a percentage of its value. It is the single most widely quoted metric in real estate investing because it strips away financing, taxes, and depreciation to answer one clean question: if I paid cash for this property today, what percentage of that price would I collect back in income over the next twelve months?
Because Cap Rate ignores how a deal is financed, it gives brokers, appraisers, lenders, REIT analysts, and individual landlords a common language for comparing very different assets — a duplex in Phoenix, a strip mall in Atlanta, and an office tower in Chicago can all be measured on the same scale.
What is Net Operating Income (NOI)?
NOI is the annual income a property produces after subtracting reasonable operating costs — taxes, insurance, maintenance, management, HOA dues, and vacancy loss — but before mortgage payments, depreciation, and income taxes. NOI is the numerator in every Cap Rate calculation, so the honesty of your NOI estimate determines the honesty of your Cap Rate.
Cap Rate vs ROI
Return on Investment (ROI) measures the return on the actual cash an investor puts into a deal, including the effect of leverage. Borrow 75% of the purchase price and your ROI can run well above the Cap Rate, because you're earning income on the lender's money too. Cap Rate ignores financing entirely — it describes the property, not your deal.
Cap Rate vs Cash-on-Cash Return
Cash-on-Cash Return divides annual pre-tax cash flow (NOI minus debt service) by the cash actually invested. It's the number most buy-and-hold investors track month to month, while Cap Rate stays the reference point commercial appraisers and institutional buyers use to set price.
Why the definition matters
A low Cap Rate (roughly 3–5%) typically signals a stable, low-risk asset in a prime market. A high Cap Rate (8%+) usually signals higher risk — a secondary market, an older building, or a shakier income stream. Understanding the definition precisely is the first step before ever touching the formula.
What Is the Cap Rate Formula?
The Cap Rate formula is short, but every input inside it deserves care. These are the same formulas used in real estate finance courses and by commercial appraisers worldwide.
Capitalization Rate
Example: A $300,000 property with a NOI of $22,000 has a Cap Rate of (22,000 ÷ 300,000) × 100 = 7.33%.
Net Operating Income (NOI)
Example: A property collects $30,000 after vacancy and spends $8,000 on taxes, insurance and maintenance. NOI = 30,000 − 8,000 = $22,000.
Property Value (Reverse Cap Rate)
Example: A building producing $60,000 NOI in a market with a 6% prevailing Cap Rate is worth 60,000 ÷ 0.06 = $1,000,000.
Effective Rental Income
Example: $50,000 of scheduled rent at 5% vacancy becomes 50,000 × 0.95 = $47,500 of effective income before expenses are deducted.
How to Calculate the Cap Rate?
Calculating a Cap Rate by hand takes four steps. The calculator above automates all of them, but understanding the process helps you sanity-check every number it returns.
1. Find the Gross Rental Income
Start with the total scheduled annual rent the property could collect if fully occupied.
2. Subtract Vacancy & Operating Expenses
Deduct a realistic vacancy allowance, then subtract taxes, insurance, maintenance, HOA and management fees to arrive at NOI.
3. Divide NOI by Property Value
Use current market value or purchase price as the denominator — never a stale, years-old figure.
4. Multiply by 100
Convert the decimal into a percentage, then compare it against similar properties in the same market.
Worked Example — Basic Cap Rate
Property Value: $300,000 · Annual Rental Income: $24,000 · Operating Expenses: $6,000
A 6% Cap Rate signals a stable investment in most U.S. metros.
Worked Example — Commercial Property
Purchase Price: $500,000 · Rental Income: $48,000 · Vacancy: 5% · Operating Expenses: $15,000
Cap Rates and Housing Booms
Cap Rates move in the opposite direction of property prices when rents stay flat. During a housing boom, buyers bid prices up faster than rents can follow, which pushes the denominator of the Cap Rate formula up and compresses the resulting percentage — even though the underlying property hasn't changed at all.
This is exactly what happened to single-family rentals during the 2020–2022 boom: home values climbed faster than rents, and Cap Rates on newly purchased rentals compressed into the mid-single digits, eroding much of the yield advantage that single-family investing had historically offered.
Interest rates are the other lever
When borrowing costs rise, investors typically demand a higher return to keep a positive spread over their financing cost, which pushes Cap Rates up and property values down. When rates fall, the opposite happens — cheaper financing draws in more buyers, competition compresses Cap Rates, and prices rise. This relationship isn't always immediate or perfectly linear, but it is one of the most consistent patterns in commercial real estate.
Reading a boom through Cap Rate
A falling Cap Rate on comparable properties in your target market is usually the first quantitative sign that a boom is underway — prices are outrunning income growth. Conversely, an expanding Cap Rate environment (rising yields, falling prices) often follows a period of rate hikes or softening rental demand, as sellers reset expectations to attract fewer, pickier buyers.
What this means for buyers
Buying at the bottom of a Cap Rate cycle — when yields are compressed and prices are elevated — locks in a lower first-year return and less cushion if rents soften. Many experienced investors treat a market-wide Cap Rate trend as a timing signal alongside, not instead of, property-level fundamentals like tenant quality, lease terms, and local job growth.
How to Calculate Cap Rate When You Buy a House – What Is a Good Cap Rate?
For a single home you plan to rent out, the calculation doesn't change — only the inputs get simpler. Take the projected annual rent, subtract realistic vacancy and operating costs (property taxes, insurance, maintenance, HOA, and management if you use it) to get NOI, then divide by the purchase price or current appraised value and multiply by 100.
Use the calculator's Complete Investment Analysis mode to run this exact workflow with your own numbers, including a vacancy slider and itemized expenses.
So, what counts as a "good" Cap Rate?
Most investors and market analysts consider 5% to 10% a healthy range for residential rental property, with the ideal spot depending heavily on location and risk appetite. A cap rate near 4–5% tends to show up in prime, low-risk markets where buyers accept a lower yield for stability; a cap rate above 8–10% usually reflects higher risk — a secondary market, an older property, or thinner tenant demand.
| Cap Rate Range | General Interpretation |
|---|---|
| Below 4% | Premium market, low risk, low return |
| 4% – 6% | Stable, balanced investment |
| 6% – 8% | Good return, moderate risk |
| 8% – 10% | Higher return, higher risk |
| Above 10% | High return, elevated risk — inspect carefully |
There is no single "correct" number. A 4% Cap Rate in Los Angeles and a 9% Cap Rate in a secondary Midwest market can both be reasonable, well-underwritten deals — context always matters more than the raw figure.
Property Evaluation Techniques
Cap Rate is a fast first-pass screen, not a complete underwriting process. Serious buyers layer several techniques together before making an offer.
Direct Capitalization
Divide a single year's stabilised NOI by a market Cap Rate to estimate value — the same math this calculator performs in Property Value mode.
Comparable Sales (Comps)
Compare the subject property against recently sold, similar properties nearby, adjusting for size, condition and location.
Discounted Cash Flow (DCF)
Project multiple years of cash flow, including an eventual sale, and discount them back to present value using a target rate of return.
Gross Rent Multiplier (GRM)
Divide price by gross annual rent for a rough, expense-free screening tool that's faster than Cap Rate but far less precise.
Replacement Cost Approach
Estimate what it would cost to rebuild the property today, useful for newer or unique assets with few direct comparables.
Cash-on-Cash Analysis
Layer financing on top of NOI to see the actual leveraged return on the cash an investor puts down.
Sensitivity / Stress Testing
Re-run NOI and Cap Rate under pessimistic rent, vacancy and expense assumptions to see how much cushion a deal really has.
Physical & Title Due Diligence
Inspections, environmental reports and a clean title search protect against costs no financial formula can capture.
Property Evaluation Ratios
| Ratio | Formula |
|---|---|
| Cap Rate | NOI ÷ Property Value |
| Gross Rental Yield | Annual Rent ÷ Purchase Price |
| Expense Ratio | Operating Expenses ÷ Effective Rental Income |
| Gross Rent Multiplier (GRM) | Purchase Price ÷ Annual Gross Rent |
| Cash-on-Cash Return | Annual Pre-Tax Cash Flow ÷ Cash Invested |
| Debt Service Coverage Ratio (DSCR) | NOI ÷ Annual Debt Service |
| Loan-to-Value (LTV) | Loan Amount ÷ Property Value |
Reading the ratios together
No single ratio tells the whole story. Cap Rate and Gross Rental Yield describe the income side of a deal; Expense Ratio shows how efficiently that income is managed; DSCR and LTV describe how safely the deal is financed. A property with an attractive Cap Rate but a DSCR below 1.2 can still be a risky loan for a lender, and a low Expense Ratio paired with a high GRM can flag a property priced ahead of its rental income.
Typical benchmarks
| Expense Ratio | Interpretation |
|---|---|
| < 30% | Excellent |
| 30 – 45% | Good |
| 45 – 60% | Average |
| > 60% | High operating costs |
Limitations of the Capitalization Rate
Ignores financing
Cap Rate is unlevered by definition, so it says nothing about how a mortgage will affect actual cash flow or return on your invested cash.
Assumes a single, stabilised year
It captures one year's income and says nothing about future rent growth, lease rollover, or upcoming capital expenditures.
Sensitive to NOI accuracy
An optimistic NOI estimate produces an inflated Cap Rate — the formula is only as trustworthy as the inputs behind it.
Not comparable across markets
A 7% Cap Rate in a secondary market and a 7% Cap Rate in a gateway city carry very different risk profiles; always compare within similar markets.
Doesn't capture tenant or lease quality
Two properties with identical Cap Rates can carry very different risk if one has a single short-term tenant and the other has diversified, long-term leases.
Reacts to interest-rate cycles
Cap Rates move with financing costs and investor sentiment, sometimes independent of a property's actual operating performance.
Frequently Asked Questions
What is Cap Rate?
Cap Rate — short for Capitalization Rate — is the unlevered annual rate of return an income-producing property is expected to generate, expressed as a percentage of its value. It equals Net Operating Income divided by property value.
How is Cap Rate calculated?
Cap Rate (%) = (Net Operating Income ÷ Property Value) × 100. NOI is calculated by subtracting operating expenses from effective rental income.
What is a good Cap Rate?
Most investors consider 5–10% a healthy range. Below 4% usually reflects prime, low-risk markets; above 10% signals higher risk. What is "good" depends on your market, asset class, and risk tolerance.
What is Net Operating Income (NOI)?
NOI is the annual income a property generates after operating expenses (taxes, insurance, maintenance, management, HOA, etc.) but before mortgage payments, depreciation and income taxes.
How is NOI calculated?
NOI = Effective Rental Income − Operating Expenses. Effective Rental Income is gross rent reduced by vacancy and credit loss.
What is the difference between Cap Rate and ROI?
Cap Rate is unlevered and measures the return on the full property value. ROI reflects the return on the actual cash invested and includes the effects of financing.
What is Gross Rental Yield?
Gross Rental Yield = (Annual Rent ÷ Purchase Price) × 100. It ignores expenses and gives a quick, rough measure of income potential.
How do vacancy rates affect Cap Rate?
Higher vacancy reduces effective rental income, which reduces NOI, which reduces Cap Rate. Realistic vacancy assumptions are essential for accurate analysis.
Can landlords use this calculator?
Yes. Landlords use Cap Rate to compare rental properties, decide when to sell, and evaluate rent increases or expense-reduction projects.
Can commercial investors use this calculator?
Absolutely. Commercial investors, brokers, appraisers and lenders all rely on Cap Rate as the primary valuation metric for income-producing property.
How accurate is this calculator?
The math is exact — accuracy depends on the quality of your inputs. Use conservative rent and realistic expenses for a trustworthy Cap Rate.
Does financing affect Cap Rate?
No. Cap Rate is unlevered by definition and ignores mortgage payments. Financing effects are captured by Cash-on-Cash Return and ROI.
What expenses should be included?
Include property taxes, insurance, maintenance, property management, HOA fees, utilities paid by the owner, landscaping, marketing, and a capex reserve. Exclude mortgage payments, depreciation and income taxes.
How do I estimate property value from Cap Rate?
Divide NOI by the target Cap Rate (as a decimal). For example, $30,000 NOI ÷ 0.06 = $500,000 value.
Is this calculator free?
Yes — 100% free, with no sign-up, no downloads, and no limits on how often you can use it.
Ready to Analyze Your Real Estate Investment?
Instantly calculate Cap Rate, Net Operating Income, Property Value, Rental Yield, Cash Flow, and overall investment performance for any residential or commercial property with this professional-grade Cap Rate Calculator.