The direct answer
STR occupancy measures booked nights relative to available nights; booking window measures time between reservation and arrival; length of stay measures nights per booking. Each describes a separate operating question, so none should be substituted for another in revenue projections.
Use available nights for occupancy
Blocked maintenance or owner-use nights should be treated consistently. If 24 of 30 available nights are booked, occupancy is 80%, independent of how early the reservations were made.
To apply the approach to an editable scenario, use the Airbnb / Short-Term Rental Calculator. For the neighboring question, explore Vacation Rental ROI Calculator.
Use booking window to plan demand timing
Short booking windows can create last-minute pricing risk even when eventual occupancy is strong. Track them by arrival season rather than comparing unlike periods.
Use length of stay to model turnover
Shorter average stays can generate more cleanings and guest-service events at identical occupied-night volume. Evaluate stay-level cost as well as occupied-night revenue.
Worked example
Two rentals each sell 24 nights in a 30-night month. If one books six four-night stays and the other books twelve two-night stays, occupancy is the same at 80%, but the second needs twice as many turnarounds.
Open Airbnb / Short-Term Rental Calculator and test your assumptions →
Common mistakes and limitations
Do not interpret longer booking windows as automatically higher occupancy or shorter stays as automatically higher profit.
Uses user-entered assumptions and does not access Airbnb/AirDNA or guarantee local STR legality, demand or pricing.
Frequently asked questions
How do you calculate STR occupancy?
Divide booked nights by available nights for the same period.
Does length of stay change occupancy?
Not necessarily. It changes the number of turnovers required to fill a given number of booked nights.
Sources and further reading
The article’s examples are illustrative arithmetic. The references below provide context for operating, valuation or transaction concepts; they do not endorse the assumptions or the calculator.
- Fannie Mae — Selling Guide B3-3.8-03, Short-Term Rental (09/02/2026)Current short-term-rental income context and vacancy/maintenance treatment.
Read our editorial policy for the scope of these educational methods.