Cap Rate Calculator

Enter your annual gross rent and property purchase price to calculate the cap rate. Cap rate is the standard US metric for comparing the income potential of investment properties.


How to use this tool

Enter the annual gross rent — the total rent collected before any expenses. Enter the property purchase price including closing costs. The calculator returns your gross cap rate and the monthly rent equivalent.

For a more accurate comparison between properties, use the same basis for purchase price across all calculations — either contract price only or contract price plus closing costs.

Understanding your results

Cap rate is calculated as annual gross rent divided by property purchase price, expressed as a percentage. A higher cap rate indicates a higher potential return relative to price, but also often reflects higher risk or a less desirable location. Cap rate does not account for financing costs, vacancy, or operating expenses.

Monthly rent equivalent divides your annual gross rent by 12. This is useful when your rental agreement states a monthly figure and you need the annualised number for investment comparisons.

Legal context

Cap rate is an investment metric, not a legal standard. The IRS does not define a minimum or maximum cap rate. It is used by lenders, appraisers, and investors to value income-producing properties. Cap rate is commonly used alongside net operating income (NOI) to estimate property value: Value = NOI / Cap Rate. State law does not regulate how cap rate is calculated or disclosed.

Frequently asked questions

What is a good cap rate for a rental property?

Most investors target a cap rate between 4% and 10% for residential rental properties. Lower cap rates (4%–6%) are typical in high-demand urban markets where property values are high. Higher cap rates (7%–10%) are more common in smaller cities or markets with higher vacancy risk. The right cap rate depends on your risk tolerance and local market conditions.

How does cap rate differ from rental yield?

Cap rate and rental yield use the same basic formula — annual rent divided by property value — but rental yield is more commonly used in the UK and Australia, while cap rate is the standard US term. In the US, cap rate is typically calculated using net operating income (after expenses) rather than gross rent, making it a net figure. This tool calculates gross cap rate using gross rent.

What is a typical cap rate in California?

Cap rates in California are generally low due to high property values. In Los Angeles, San Francisco, and San Jose, residential cap rates typically range from 3% to 5%. Inland areas such as the Central Valley and Inland Empire tend to see higher cap rates of 5% to 7%. Low cap rates in California reflect strong long-term appreciation expectations rather than high current income.

What is a typical cap rate in Texas?

Texas markets generally offer higher cap rates than coastal states. Dallas-Fort Worth, Houston, and San Antonio typically see residential cap rates between 5% and 8%. Austin has seen cap rate compression in recent years due to rapid price growth. Texas has no state income tax, which can make cash flow comparisons with other states more favourable.

What is a typical cap rate in New York?

New York City cap rates for residential properties typically range from 3% to 5% in Manhattan and prime Brooklyn neighbourhoods. Outer boroughs and upstate New York markets tend to offer 5% to 8%. Rent stabilisation laws in New York City can cap rent growth, which affects long-term cap rate projections.

What is a typical cap rate in Florida?

Florida cap rates vary significantly by market. Miami and Orlando vacation-rental markets often see gross cap rates of 5% to 8%, though short-term rental income can be less predictable. Tampa and Jacksonville offer more stable cap rates of 5% to 7% for long-term rentals. Florida has no state income tax, which improves net returns.

Does cap rate include mortgage costs?

No. Cap rate is calculated before financing costs. It measures the return on the property as if purchased with cash. To account for mortgage costs, use cash-on-cash return instead, which measures the return on the actual cash you invested after debt service.

How do I calculate cap rate if I know the NOI?

If you know your net operating income (rent minus operating expenses, before mortgage), divide NOI by the property price and multiply by 100. For example, a property with $18,000 NOI and a $300,000 purchase price has a cap rate of 6%. This tool uses gross rent rather than NOI, so subtract your operating expense ratio to convert to a net cap rate.

Can cap rate be used to estimate property value?

Yes. The income approach to property valuation uses cap rate: Property Value = Net Operating Income / Cap Rate. If comparable properties in your area trade at a 6% cap rate and your property generates $18,000 NOI, the estimated value is $300,000. Lenders and appraisers use this method for income-producing properties.

Is cap rate the same as return on investment?

No. Cap rate measures the income return relative to property value, assuming an all-cash purchase. Return on investment (ROI) accounts for total return including appreciation, loan paydown, and tax benefits. Cap rate is a snapshot metric used for comparison and valuation, not a measure of total investment performance over time.

Related tools

Cash-on-Cash Return Calculator: Calculate your return after financing costs.

PITI Mortgage Calculator: Work out your full monthly mortgage payment including tax and insurance.

Rental Yield Calculator (UK): The UK equivalent metric for comparing property returns.