Estimate operating room staffing requirement with inputs that match day-to-day operating room operations. The calculator keeps workload, available capacity, and operational assumptions visible, so you can test a baseline and then change one driver at a time. Results are planning estimates: use locally observed rates and apply clinical, labor, safety, and scheduling requirements before making an operational decision.
Base workload = units × (service minutes + additional minutes) ÷ 60
Required FTE = base workload × (1 + coverage allowance) ÷ productive hours per staff member
The allowance is applied to labor hours, not to the case count.
The result is a workload-based full-time-equivalent estimate for the period represented by the inputs. It is not a shift roster or a clinical minimum.
Planning estimate only. Validate assumptions against local policy, staffing rules, equipment constraints, case mix, and patient-safety requirements.
Using 24 units, 75 service minutes, 20 additional minutes, 7 productive hours, and a 15% allowance:
24 × (75 + 20) ÷ 60 = 38.0 base hours
38.0 × 1.15 ÷ 7 = 6.24 FTE
No. It is a workload-based FTE estimate. Shift coverage, credentials, supervision, breaks, and local rules still need to be applied.
That time consumes staff capacity even though it is not direct service time, so excluding it can understate workload.
Usually not. Productive hours should exclude time unavailable for the measured workload, using your organization’s definitions.
Combine their available productive hours for the same period, or compare the result with each person’s FTE fraction.
No. It is a simple buffer for known nonproductive or coverage needs, not a substitute for a roster.
| Input | What to enter |
|---|---|
| Scheduled cases | cases; allowed range 0–500 |
| Average procedure time | minutes; allowed range 1–1440 |
| Turnover time per case | minutes; allowed range 0–240 |
| Productive hours per staff member | hours; allowed range 0.25–24 |
| Coverage allowance | %; allowed range 0–100 |