Revenue metrics
What is ALOS in hotels?
ALOS, or average length of stay, is the average number of nights guests stay per booking. It is calculated by dividing room nights sold by the number of bookings in a period. A higher ALOS means fewer check-ins, check-outs and full cleans for the same number of room nights.
ALOS formula
ALOS = room nights sold ÷ number of bookings
If a hotel sells 900 room nights in a month across 400 bookings, its ALOS is 2.25 nights. Track it by channel and by segment: corporate guests and OTA guests often stay for very different lengths of time.
Why it matters
Every arrival costs a check-in, a check-out clean and often an OTA commission. Longer stays spread those costs over more nights. Hotels raise ALOS with stay-longer offers and with a minimum length of stay on busy dates.
In StaySynq
StaySynq shows occupancy, ADR and RevPAR live from your own bookings, by day, month or channel.
Common questions
What is a good ALOS?
It depends on the type of property. City business hotels often see one to two nights, while resorts and homestays see longer stays. Compare against your own past months rather than a general benchmark.
Related terms
- Occupancy rateOccupancy rate is the percentage of a hotel's available room nights that were sold in a period. It is calculated by dividing room nights sold by room nights available. It shows how full the hotel was, but not what guests paid.
- ADR (average daily rate)ADR, or average daily rate, is the average price a hotel earns for each room it sells in a period. It is calculated by dividing room revenue by the number of room nights sold. ADR shows how well you are pricing, but says nothing about how many rooms stayed empty.
- Minimum length of stay (MLOS)Minimum length of stay (MLOS) is a booking restriction that requires a reservation to cover at least a set number of nights. Hotels apply it on high-demand dates, so that a one-night booking on the busiest night doesn't block a longer, more valuable stay.
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