Cap Rate Calculator

What is Cap Rate (Capitalization Rate)?

Cap rate, short for capitalization rate, is one of the most important metrics in real estate investing. It measures the rate of return on a real estate investment property based on the income the property generates. The formula is simple: Cap Rate = Net Operating Income (NOI) / Current Market Value × 100. For example, if a property is worth $300,000 and generates $21,000 in NOI annually, the cap rate is 7%. Cap rate is useful because it allows you to compare properties of different sizes and prices on an apples-to-apples basis, independent of financing.

Understanding Net Operating Income (NOI)

Net Operating Income is the foundation of cap rate calculations. NOI equals all revenue from the property minus all operating expenses, but BEFORE mortgage payments, depreciation, capital expenditures, and income taxes. Revenue includes rent, parking fees, laundry income, and other operational income. Operating expenses include property taxes, insurance, maintenance, repairs, property management, utilities (if owner-paid), HOA fees, and landscaping. NOI does NOT include mortgage payments because cap rate measures the property's performance independent of how it's financed. This makes cap rate useful for comparing properties regardless of financing structure.

What's a Good Cap Rate?

A "good" cap rate varies by location, property type, and market conditions. Generally, cap rates range from 3% to 12%. Low cap rates (3-5%) are typical in expensive markets like San Francisco or New York where investors accept lower current returns in exchange for appreciation potential and stability. Medium cap rates (5-8%) are common in suburban areas and indicate balanced income and growth. High cap rates (8-12%+) occur in less desirable areas, secondary markets, or riskier properties - higher returns compensate for higher risk. Class A properties in prime locations have lower cap rates, while Class C properties in declining areas have higher cap rates. Compare cap rates to similar properties in the same market, not nationally.

Cap Rate vs Cash on Cash Return

Cap rate and cash on cash return measure different aspects of real estate returns. Cap rate ignores financing and shows the property's unleveraged return - what you'd earn buying all-cash. It's calculated using NOI and property value. Cash on cash return accounts for financing and shows your leveraged return on actual cash invested. It's calculated using annual cash flow after mortgage payments divided by cash invested. For example, a property with a 7% cap rate might deliver a 12% cash on cash return with 20% down and favorable financing, or only 5% if you overpaid. Use cap rate to compare properties independent of financing, and cash on cash to evaluate your specific leveraged investment.

How Cap Rates Vary by Property Type

• Single-Family Rentals: 4-8% cap rates, easier management but lower economies of scale.
• Small Multifamily (2-4 units): 5-9% cap rates, good for beginners, residential financing available.
• Large Multifamily (5+ units): 4-8% cap rates, more stable with diversified tenant base, requires commercial loans.
• Retail Properties: 5-9% cap rates, depends heavily on tenant creditworthiness and lease terms.
• Office Buildings: 5-10% cap rates, affected by remote work trends and economic cycles.
• Industrial/Warehouse: 5-8% cap rates, strong demand from e-commerce growth.
• Self-Storage: 7-10% cap rates, recession-resistant but management-intensive.

Cap Rate Compression and Expansion

Cap rates move inversely to property values - when cap rates compress (decrease), property values increase, and vice versa. During economic booms and low interest rates, investors accept lower cap rates, pushing property prices up. For example, if a property's NOI stays constant at $30,000 but the cap rate compresses from 7% to 5%, the property value rises from $428,571 to $600,000. During recessions or rising interest rates, cap rates expand (increase) as investors demand higher returns for perceived risk, causing property values to fall. Understanding cap rate trends in your market helps you time purchases and sales effectively.

Using Cap Rate to Determine Property Value

You can rearrange the cap rate formula to estimate property value: Property Value = NOI / Cap Rate. If you know a property's NOI is $40,000 and comparable properties sell at 6% cap rates, the property should be worth approximately $666,667. This is useful for making offers, evaluating asking prices, and negotiating. However, verify the NOI is accurate and the comparable cap rate is truly comparable (same property type, class, location, and condition). Sellers often inflate income or understate expenses to make cap rates appear better. Always verify rent rolls, expense histories, and operating statements before trusting published cap rates.

Limitations of Cap Rate

While useful, cap rate has important limitations. It ignores financing costs and leverage, so it doesn't show your actual return if you use a mortgage. It's a snapshot of one year's performance and doesn't account for future rent growth or appreciation. It doesn't consider capital expenditures like replacing roofs or HVAC systems, which can be significant. It ignores tax benefits like depreciation. It assumes NOI is accurate, but sellers often misrepresent income or expenses. Cap rate doesn't account for time value of money or holding period. Different properties require different management time and expertise that cap rate doesn't reflect. Use cap rate as one tool among many, not as your sole decision criteria.

Compare cap rate to cash on cash return to see how financing affects your investment. Calculate monthly cash flow to understand actual money in your pocket. Use the Gross Rent Multiplier for quick property comparisons.