Capitalization Rate (Cap Rate)

Real Estate Investing
Updated Apr 2026 Has calculator

The ratio of a property's net operating income to its market value, expressing the expected return on an all-cash real estate investment.

What is Cap Rate?

The capitalization rate (cap rate) is the most widely used metric for evaluating and comparing income-producing properties. It equals net operating income divided by the current market value and represents the unleveraged yield — the return an investor would receive if the property were purchased entirely with cash. Cap rates are market-specific: gateway cities like New York and San Francisco typically see cap rates of 3–5%, while secondary markets may offer 6–10%. A rising cap rate signals either higher income or falling prices (or both), and vice versa. Lenders and appraisers use cap rates to determine property values by dividing NOI by the prevailing cap rate.

Formula

Cap Rate (%) = (NOI / Property Value) × 100

Worked Example

Worked example — 4-Unit Apartment Building — Midwest Market

2024

Step 1  Gross annual rent: $144,000 (4 units × $3,000/mo)
Step 2  Operating expenses (taxes, insurance, mgmt, maintenance): $24,000
Step 3  NOI = $144,000 − $24,000 = $120,000
Step 4  Cap Rate = $120,000 / $1,500,000 × 100 = 8.00%
Step 5  → At prevailing 7% market cap rate, implied value = $120K / 0.07 = $1,714,286

Source: Investopedia — Capitalization Rate (2024-01-01)

Calculate Cap Rate

Net Operating Income: gross rent minus operating expenses (excludes mortgage)

Current market value or purchase price

Cap Rate

Not investment advice.

How to Interpret Cap Rate

< 4
Low Cap Rate — gateway market or trophy asset
4 – 6
Moderate Cap Rate — primary market, stable income
6 – 9
Good Cap Rate — secondary market or value-add asset
> 9
High Cap Rate — higher risk or distressed market area

📚 Real Estate Basics — Complete the path

  1. Cap Rate
  2. NOI
  3. Cash-on-Cash Return
  4. Gross Rent Multiplier
  5. 1% Rule