Understanding Hotel Average Length of Stay
How we calculate. ALOS (nights) = room nights ÷ departures. See our methodology and accuracy policy .
Real-world scenario: A typical Hotel Average Length of Stay case uses room nights 450 and departures 150. Enter the same figures below to reproduce the worked path.
What is Hotel Average Length of Stay?
A stay-duration KPI for hotels. Distinct from healthcare average length of stay (patient days ÷ discharges) on the Healthcare hub.
- Room nights = occupied nights in the period
- Departures = check-outs / stays ending
- Same property
The Formula
Worked Example
Common Use Cases
- Revenue strategy: length-of-stay mix
- Housekeeping: turn volume vs nights
- Group vs transient: ALOS comparison
Pro Tips
- Don’t use healthcare ALOS
- State room nights vs guest nights
- Pair with occupancy and ADR
| Scenario | When to use |
|---|---|
| Percent of a number | Finding a part of a whole (tax, tip, score) |
| Percent change | Comparing old vs new values |
Limitations: Hotel Average Length of Stay results are educational hotel and restaurant planning aids—not accounting, tax, or franchise reporting advice. Confirm definitions with your PMS, POS, and brand standards.
Common mistakes
- Swapping part and whole: The denominator must be the full total, not a subset.
- Rounding too early: Carry extra decimal places through multi-step work before rounding the final percent.
- Mixing percent and decimal forms: Enter rates in the format the calculator labels expect.
The worked example for hotel average length of stay was verified with the calculator form on this page—enter the same values to confirm the result.
When to use this calculator
- Use this page when your wording matches hotel average length of stay and the form labels on screen.
- Use percent of a number for “what is X% of Y?” problems.
- Use number is what percent when you know part and whole and need the percent.
Still unsure about hotel average length of stay? Start with the quick answer above, then open the linked calculator that matches your wording.
❓ Frequently Asked Questions
How do I use this hotel average length of stay calculator?
For hotel average length of stay (percentage calculator), enter the values labeled on the form, then press Calculate. Compare the result to the worked example on this page.
What formula does this page use?
See the quick answer and formula box above for hotel average length of stay—the same percentage calculator expression is applied to your inputs.
What if my result looks wrong?
When checking hotel average length of stay, re-check part vs whole (or rate vs base), rounding, and whether percents were entered as 25 rather than 0.25 when the form expects percents.
Authoritative References
For hotel and restaurant performance concepts, consult:
- AHLA — lodging industry context
- Hospitality Net — industry explainers
- National Restaurant Association — restaurant operations context