Free Airbnb & Short-Term Rental Calculator

Estimate annual revenue, cash flow, cap rate, and cash-on-cash return on any short-term rental before you buy.

Quick Answer: Airbnb gross revenue = 365 × occupancy rate × average nightly rate. Subtract operating expenses (30–50% of gross for STR) to get net operating income, then divide by purchase price for cap rate or by cash invested for cash-on-cash return.

Airbnb Income & Cash Flow Calculator

Underwrite at 60–70%; stress-test at 55–60%

Mortgage, utilities, insurance, software, management

For cap rate

Down payment + closing + furnishing, for cash-on-cash return

How to Underwrite a Short-Term Rental

Short-term rentals can out-earn long-term rentals 1.5–3x in the right market, but expenses are higher and revenue is seasonal. The key is conservative occupancy and a full expense picture. Compare the result against our rental property calculator and cap rate calculator to decide between STR and long-term.

The Revenue Formula

Gross Revenue = 365 × Occupancy % × Nightly Rate

NOI = Gross Revenue − Operating Expenses

Worked Example

A 3-bed cabin rents for $180/night at 65% occupancy, with $2,000/month in operating costs:

  • Gross revenue = 365 × 0.65 × $180 = $42,705
  • Operating expenses = $2,000 × 12 = $24,000 (plus cleaning turnover labor)
  • NOI ≈ $42,705 − $24,000 = $18,705/year (~$1,559/month)
  • On a $400,000 purchase, cap rate ≈ $18,705 ÷ $400,000 = 4.68%

Underwriting Rules of Thumb

  • Occupancy: Underwrite at 60–70%, confirm the deal survives at 55–60%.
  • Expenses: Budget 30–50% of gross for STR (vs 15–25% for long-term).
  • Regulation: Always confirm local short-term rental ordinances before buying.

Frequently Asked Questions

How do you calculate Airbnb income?

Multiply 365 nights by your occupancy rate and average nightly rate. At $180/night and 65% occupancy that's 365 × 0.65 × $180 = $42,705 gross per year. Subtract operating expenses to get net income.

What occupancy rate should I use?

Underwrite at 60–70% and stress-test at 55–60% so the deal isn't dependent on a perfect peak season. Actual occupancy varies by market, seasonality, and how well the listing is managed.

Should I do short-term or long-term rental?

Compare them on net cash flow, not gross. STR can earn more but carries higher expenses and regulatory risk. Run the same property through our rental property calculator to see the long-term number side by side.