Reference Interval — free, runs in your browser
Enter a set of measurements to compute mean, SD, normality test and the P2.5–P97.5 reference interval, producing a reference-interval table ready to dro… Computed in your browser — no data uploaded.
Open free tool →Runs in your browser
No software installation. Paste your data and get results instantly.
Publication-ready output
Export charts as SVG vector or HD/UHD PNG suitable for journal submission.
Data stays local
Nothing is uploaded. Your patient data never leaves your device.
Common questions
When should I use Reference Interval?
Enter a set of measurements to compute mean, SD, normality test and the P2.5–P97.5 reference interval, producing a reference-interval table ready to drop into a paper.
Is my data safe?
All calculations run entirely in your browser. No data is sent to any server. You can even use the tool offline after the page loads.
Run Reference Interval now
Enter a set of measurements to compute mean, SD, normality test and the P2.5–P97.5 reference interval, producing a reference-interval table ready to dro… Computed in your browser — no data uploaded.
Open free tool →Free to use. No account required. No data uploaded.