Lab Turnaround Time: Median and 90th Percentile
Laboratory turnaround time: the median and a nearest-rank percentile from a list of minutes, and the share meeting a target.
Open the calculator → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Turnaround times in minutes, one per line
- 30 45 50 60 40 55 35 65 70 120
- The laboratory's target in minutes
- 60
Result: Median 52.5 minutes; 90th percentile 70 minutes, over 10 results.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Turnaround times in minutes, one per line
- Percentile (default 90)
- The laboratory's target in minutes (optional)
How this is calculated
Citation
Stated arithmetic: the median, the nearest-rank percentile (the ceil(p/100 x n)-th value in order), the mean, and the share at or under a target. No primary source; no target is given.
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.