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What is Average Length of Stay (ALOS)?

Updated 2026-05-28

Average Length of Stay (ALOS) is a metric used by property managers and hosts to determine the average duration of guest stays. It is calculated by dividing the total number of occupied nights by the number of distinct bookings within a defined timeframe.

This key performance indicator (KPI) provides valuable insight into guest booking patterns and the operational rhythm of a rental business.

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How it works

To calculate ALOS, a host first specifies a period, such as a month, quarter, or year. They then sum the total number of nights from all completed stays within that period.

Next, they count the number of individual bookings that made up those stays. The total number of nights is then divided by the total number of bookings.

For example, if a property had 300 booked nights from 50 separate reservations in a quarter, the ALOS would be 6 nights.

Why it matters

Understanding ALOS is crucial for optimizing revenue and operational efficiency. A higher ALOS can significantly reduce turnover-related costs, such as cleaning and administrative tasks, and minimize wear and tear from frequent guest changes.

This metric informs pricing strategies, including the use of length-of-stay discounts and minimum stay requirements. By analyzing ALOS trends, hosts can better forecast revenue and adjust marketing to attract their desired guest segments.

Examples

  • A property manager reviews their annual report and finds their portfolio had 10,950 booked nights across 2,190 bookings, resulting in an ALOS of 5 nights.
  • To reduce operational strain during the holidays, a cabin owner implements a 4-night minimum stay for December, aiming to increase their ALOS from its usual 2.5 nights.
  • A host of an urban apartment notices their ALOS is 2.1 nights. To encourage longer stays, they introduce a weekly discount, successfully increasing the ALOS to 3.5 nights for the following quarter.
  • An analysis of a beach house shows an ALOS of 7.2 nights in the summer and 3.1 nights in the shoulder season, helping the owner set different pricing and minimum stay rules for each period.

Frequently asked questions

What is a good Average Length of Stay for a vacation rental?+
A 'good' ALOS varies significantly based on property type, location, and season. A city-center studio might thrive with an ALOS of 2-3 nights catering to weekend travelers, while a large family villa in a resort area would aim for 7 nights or more, especially during peak season.
How can I increase my Average Length of Stay?+
To increase ALOS, hosts can offer length-of-stay discounts (e.g., a reduced weekly rate), set longer minimum night stay requirements, and highlight amenities suited for longer trips, such as a fully-equipped kitchen, home office workspace, or in-unit laundry.
How does ALOS relate to other metrics like ADR and Occupancy Rate?+
ALOS is interconnected with other key metrics. Often, hosts offer a lower Average Daily Rate (ADR) for longer stays to secure a higher ALOS and guaranteed occupancy. While a longer stay might have a lower ADR, it can result in higher overall revenue and lower operational costs per booking.
Where can I track my property's ALOS?+
Most property management systems and OTA dashboards have a reporting section that automatically calculates and tracks ALOS. Platforms like Lodgify often include an analytics dashboard where you can monitor ALOS alongside other KPIs like occupancy rate and total revenue over different time periods.
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