Best Cap Rate Calculators Compared

EstatePass is the best free cap rate calculator in 2026. It includes a built-in NOI calculator with detailed expense inputs, so you can compute cap rate step by step without needing to calculate NOI separately. DealCheck offers a free tier but limits you to 5 deals. Calculator.net is free but requires you to already know your NOI.

Cap rate equals Net Operating Income (NOI) divided by property value, expressed as a percentage. For example, a property generating $30,000 NOI valued at $400,000 has a 7.5% cap rate. The key is accurately calculating NOI by subtracting all operating expenses (taxes, insurance, maintenance, management, vacancy) from gross rental income.

A "good" cap rate depends on the market and property type. Generally, 4–6% is common in major metro areas, 6–8% in secondary markets, and 8–12% in tertiary or higher-risk markets. Lower cap rates typically indicate lower risk but less cash flow. Commercial properties often trade at 5–10% cap rates depending on asset class.

Cap rate measures a property's income potential regardless of how it is financed (NOI / property value). ROI measures your actual return on the cash you invested, including the effects of leverage (mortgage). A property can have a 6% cap rate but deliver 12% ROI through leverage. Cap rate is best for comparing properties; ROI is best for evaluating your personal return.

Cap rate uses Net Operating Income, which deducts operating expenses from gross income. Include: property taxes, insurance, property management fees (8–10% of rent), maintenance and repairs (1–2% of property value), vacancy allowance (5–10%), HOA fees, and utilities you cover. Do NOT include mortgage payments — cap rate is independent of financing.

Cap rate measures a property's inherent return potential regardless of how it is purchased. Excluding mortgage payments allows fair comparison between all-cash and leveraged purchases, and between properties with different financing terms. This standardization makes cap rate the universal metric for comparing investment properties across markets.

Cap rates vary significantly by asset class. In 2026, typical ranges are: multifamily apartments 4–6%, single-family rentals 5–8%, office buildings 6–9%, retail 6–10%, and industrial/warehouse 5–7%. Higher cap rates generally indicate higher perceived risk or less desirable locations. Use a calculator like EstatePass to evaluate deals within your target asset class.

It depends on your investment strategy. Low cap rate properties (4–5%) are typically in stable, appreciating markets with lower cash flow but better long-term equity growth. High cap rate properties (8–12%) offer more immediate cash flow but may be in riskier markets with less appreciation potential. Most investors balance both by targeting 6–8% cap rates in growing secondary markets.