Cap Rate Calculator

The Cap Rate Calculator converts a property’s income into its capitalization rate — the return on the building itself, before any loan. Enter rent, vacancy, other income and operating expenses to see NOI, effective gross income and a cap rate you can benchmark against the market.

• NOI: Income minus operating costs, before financing.
• Cap rate: NOI ÷ price, the asset return.
• EGI: Effective gross income after vacancy.
• Expense view: Operating costs isolated.
• Export: CSV, JSON or plain text.

1. Price & rent: Property value and gross rent.
2. Vacancy & other: Vacancy percent and other income.
3. Expenses: Tax, insurance, maintenance, management, utilities, HOA.
4. Read: NOI, EGI, cap rate.
5. Export.

Example 1 — Baseline. $400k, $2,500 rent, 5% vacancy: cap rate near 6%.

Example 2 — Vacancy bite. 10% vacancy lowers NOI and cap rate.

Example 3 — Higher rent. $3,000 rent lifts cap rate above 7%.

Example 4 — Cost heavy. High taxes/maintenance suppress the rate.

Example 5 — Compare. Same cap across two buildings signals similar asset returns.

• Asset apples-to-apples: Financing removed for fair comparison.
• NOI clarity: See what the building earns before debt.
• Benchmark: Compare against market cap rates.
• Private: No account, no upload, nothing stored.