ALOS – Average Length of Stay

What is the meaning / definition of average length of stay in the hospitality industry?

alos stands for Average Length of stay. It is the average amount of days guests stay at the hotel during a particular period.

Formula:

Average Length of Stay (ALOS) = Number of roomnights / Number of bookings

How to calculate:

Step 1

• Length of stay = date of discharge – date of admission
• los of Guest A = [(4-4-2013) – (10-4-2013)] = 6
• LOS of Guest B = [(2-4-2013) – (13-4-2013)] = 11
• LOS of Guest C = [(15-4-2013) – (20-4-2013)] = 5
• LOS of Guest D = [(22-4-2013) – (30-4-2013)] = 8

Step 2

• Total Length of stay: 6 + 11 + 5 + 8 = 30 days

Step 3:

• Average Length of Stay: Total length of stay / Total number of reservations
• 30 / 4 = 7,5 days

Alos can vary a lot. A typical hotel in Amsterdam city center has an ALOS of 1,8 while a Resort located in Bali can have a Alos of 8,5.

See Also:

• minlos
• MaxLOS

Synonyms:

• Alos
• Average Length of stay