Bed occupancy rate and length-of-stay calculator
Four numbers hospital managers watch every month. Enter your bed count, the period, inpatient days and discharges to get bed occupancy rate, average length of stay (ALOS), bed turnover rate and turnover interval.
Add this calculator to your website
Free for clinics, hospitals, schools and health writers. Paste this where you want it to appear; it runs on our site, keeps nothing and needs no sign-up.
Formulas
| Indicator | Formula |
|---|---|
| Bed occupancy rate | Inpatient days ÷ (beds × days in period) × 100 |
| Average length of stay | Inpatient days ÷ discharges |
| Bed turnover rate | Discharges ÷ beds |
| Turnover interval | (Beds × days − inpatient days) ÷ discharges |
What good looks like
Many hospitals aim for 75% to 85% occupancy: lower wastes capacity, while running above about 85% leaves little room for emergencies and is linked to bed shortages and infection risk. ALOS depends heavily on case mix, so compare it within a specialty and over time.
Frequently asked questions
What is a good bed occupancy rate?
Around 75% to 85% is a common target. Sustained occupancy above 85% leaves too little room for emergency admissions.
How do you calculate average length of stay?
Total inpatient days in a period divided by the number of discharges in the same period.
Related
Ready to see it for your hospital?
Answer a few questions and get a setup plan sized to your facility.
See the live bed boardLast updated 03 November 2026.