Hotel Average Length of Stay Inputs
Use occupied room nights and completed departures for the main result. Optional fields unlock occupancy, ADR, RevPAR, mix, and demand quality insights.
Formula used
Main formula: Average Length of Stay = Occupied Room Nights ÷ Completed Departures
Guest-based stay length: Guest Nights ÷ Completed Departures
Available room nights: Rooms Available per Day × Days in Period
Occupancy rate: Occupied Room Nights ÷ Available Room Nights × 100
Average daily rate: Room Revenue ÷ Occupied Room Nights
RevPAR: Room Revenue ÷ Available Room Nights
Cancellation rate: Cancelled Bookings ÷ (Arrivals + Cancelled Bookings + No-Shows) × 100
No-show rate: No-Shows ÷ (Arrivals + Cancelled Bookings + No-Shows) × 100
How to use this calculator
- Enter occupied room nights for the period you want to review.
- Enter completed departures to match the stays that actually ended during that period.
- Add optional guest nights, revenue, room inventory, and booking quality data for deeper analysis.
- Press the calculate button to display the result above the form.
- Use the CSV and PDF buttons to export the calculated report for sharing or archiving.
Example data table
This sample shows how room nights and departures convert into the primary average length of stay value.
| Period | Arrivals | Departures | Occupied Room Nights | Guest Nights | Room Revenue | ALOS |
|---|---|---|---|---|---|---|
| Week 1 | 128 | 120 | 250 | 410 | $32,500 | 2.08 nights |
| Week 2 | 136 | 132 | 274 | 430 | $35,200 | 2.08 nights |
| Week 3 | 118 | 112 | 246 | 395 | $31,150 | 2.20 nights |
| Week 4 | 149 | 144 | 300 | 468 | $38,900 | 2.08 nights |
| Week 5 | 121 | 119 | 261 | 405 | $33,780 | 2.19 nights |
Why this metric matters in hotels
Average length of stay affects staffing plans, housekeeping turns, front desk intensity, and revenue strategy. Shorter stays often increase workload per occupied night, while longer stays can reduce room turns but may require careful pricing control to protect daily rate and total revenue quality.
FAQs
What does average length of stay mean?
It shows the average number of nights each completed booking stayed. Hotels use it to evaluate demand quality, staffing load, turnover pressure, and pricing opportunities.
Why are departures used in the main formula?
Departures represent completed stays. Using checkouts aligns occupied room nights with the bookings that actually consumed those nights during the measured period.
Can I calculate stay length with guest nights too?
Yes. Guest nights create a people-based stay measure, while room nights create a room-based measure. Reporting both helps reveal party size differences.
What is considered a good hotel ALOS?
There is no universal target. Business hotels often run shorter stays, while resorts and extended-stay properties usually post higher values. Compare against your segment and season.
How does ALOS affect operations?
Higher ALOS usually reduces room turns per occupied night. Lower ALOS increases housekeeping pressure, laundry volume, front desk activity, and scheduling complexity.
Should cancellations be included in ALOS?
No. ALOS should use completed stays or actual occupied room nights. Track cancellations separately to understand lost demand and forecast reliability.
Can a longer stay improve hotel revenue?
Sometimes. Longer stays can reduce turnover cost and acquisition expense, but discounting may hurt rate quality. Review ALOS together with ADR and RevPAR.
How often should hotels review this metric?
Most properties track it daily, weekly, monthly, and by segment. Multiple views help reveal seasonality, events, and workload shifts before budgets drift.