Weight occupancy and ADR
Annual occupancy equals total booked nights divided by total available nights. Blended ADR equals total accommodation revenue divided by total booked nights, so neither metric is a simple average of monthly percentages.
Short-term rental underwriting
Airbnb Calculator
Estimate Airbnb revenue, expenses, financing, and cash flow from one average month or a complete 12-month seasonal forecast.
Decision question
What could this short-term rental produce across a full seasonal year?
This calculator provides estimates and educational information for planning and comparison, not financial, investment, tax, legal, lending, or real estate advice.
Operating memo
Model one representative month or the full seasonal year
Average Month is a fast blended scenario. Monthly / Seasonal keeps each month independent, then sums actual monthly revenue, operating costs, NOI, debt service, and cash flow into annual results.
Primary formula
Monthly Revenue = Available Nights × Occupancy × ADR + Booking Fees + Other Income
Booked nights retain full precision. Seasonal annual totals are the sum of 12 submitted months; Average Month preserves the original one-month × 12 workflow.
Let expenses follow their real drivers
Platform, management, maintenance, and turnover costs respond to actual monthly activity. Annual tax and insurance are allocated monthly, while utilities, supplies, HOA, and other monthly costs recur.
Read NOI, financing, and break-even separately
NOI stops before financing. The fixed mortgage payment is then subtracted for cash flow. Monthly break-even occupancy shows the threshold under that month’s ADR, availability, costs, and financing assumptions.
Seasonal planning example
This engine-backed example uses lower winter occupancy, stronger summer ADR and occupancy, and shoulder-season assumptions. With the default property, expense, stay, and financing inputs, the 12 submitted months produce $54,738.00 gross revenue, $21,415.11 NOI, and -$939.05 cash flow. Weighted annual occupancy is 62.51% and booked-night-weighted ADR is $219.58.
Winter example
January · $155 ADR · 42%
Summer example
July · $285 ADR · 84%
Shoulder example
October · $195 ADR · 60%
For a strategy comparison, use the Rental Property Calculator. To isolate financing or return measures, continue with the related mortgage, DSCR, cap-rate, and cash-on-cash tools below.
Learn the method
Related Guides
- MethodHow to Calculate Airbnb ProfitabilityCalculate short-term rental revenue and costs from ADR, occupancy, bookings, turnovers, expenses, and debt service.
- ExampleAirbnb Investment Analysis Example: Revenue, Expenses, and Cash FlowConvert annualized ADR and occupancy into revenue, NOI, cash flow, and a lower-occupancy sensitivity.
- ComparisonAirbnb vs. Long-Term Rental: Revenue, Expenses, and Cash Flow ComparedCompare annual revenue, operating costs, NOI, and cash flow, then reduce only short-term occupancy.
Continue the analysis
Related deal checks
- Cap Rate CalculatorReview operating yield without the mortgage structure.
- Cash-on-Cash Return CalculatorFocus on annual cash flow relative to upfront cash invested.
- DSCR CalculatorCompare the seasonal annual NOI estimate with annual debt service.
- Mortgage Payment CalculatorInspect the fixed payment and amortization used by the forecast.
Questions
About the Airbnb Calculator
Occupied nights equal available nights multiplied by occupancy. The calculator multiplies occupied nights by the average nightly rate, adds cleaning fees for estimated bookings, and includes other monthly income.
Choose Monthly / Seasonal and enter ADR, occupancy, available nights, and optional other income for each month. The calculator multiplies unrounded booked nights by ADR, adds booking-based cleaning-fee revenue and other income, and then sums the 12 submitted months.
Seasonality can change ADR, occupancy, and availability independently each month. The seasonal mode captures those changes before adding monthly revenue, expenses, NOI, and cash flow into annual totals; it is a planning estimate, not a prediction.
Annual occupancy is weighted by availability: total booked nights divided by total available nights. It is not the simple average of the 12 monthly percentages, so months with more available nights carry more weight.
Use Average Month for a compact blended scenario and Monthly / Seasonal when monthly ADR, occupancy, or availability differs materially. Average Month annualizes one submitted month; Seasonal sums 12 independent submitted months.
Blended ADR is annual accommodation revenue divided by annual booked nights. It weights each monthly ADR by booked nights and is unavailable when the forecast has no booked nights.
Use dated, comparable market and property evidence for each month, then account for events, minimum stays, weekday and weekend mix, owner blocks, and available nights. Keep optimistic and downside assumptions separate rather than copying one peak-season rate across the year.
The calculator searches from 0% to 100% for the lowest occupancy at which cash flow is non-negative while preserving the submitted ADR, availability, booking assumptions, operating costs, and mortgage payment. Seasonal results show both monthly and annual break-even occupancy.
Lower ADR or occupancy can reduce revenue while tax, insurance, utilities, supplies, HOA costs, other monthly expenses, and mortgage payments continue. The monthly table separates revenue, operating expenses, NOI, and cash flow so the cause remains visible.
Annual property tax and insurance are allocated in equal monthly portions. Entered monthly utilities, supplies, HOA fees, and other expenses recur each month, while platform, management, maintenance, and turnover cleaning costs respond to that month’s activity.
Yes. It uses the purchase price, down payment, fixed interest rate, and loan term to calculate one monthly principal-and-interest payment. That payment is excluded from NOI and subtracted afterward to calculate cash flow.
Yes. Monthly / Seasonal mode provides an independent occupancy input for every month, along with monthly ADR, available nights, and other income. Results update only after Calculate Seasonal Forecast is submitted.
No. Gross revenue includes accommodation revenue, guest cleaning-fee revenue, and other income. NOI is what remains after modeled operating expenses but before the mortgage payment.
Its output is only as reliable as the submitted pricing, occupancy, availability, stay length, cost, and financing assumptions. Use documented market and operating evidence, test downside cases, and treat the result as a planning estimate rather than a forecast guarantee.