Statistics
Descriptive Statistics
Mean, median, sample SD, SEM and range in one step.
YOUR INPUTS
RESULT
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Enter your values and select Calculate to see your result here.
ABOUT THIS TOOL
Paste a column of numbers to calculate common descriptive statistics quickly, without uploading a file.
Important: Sample standard deviation uses n−1 in the denominator. SEM measures uncertainty of the sample mean, not spread among observations.
How it works
Method: Sample SD = √[Σ(x − mean)²/(n − 1)]; standard error of the mean (SEM) = SD/√n.
Example: For 1, 2 and 3, the mean and median are both 2, the sample SD is 1 and SEM is approximately 0.577.
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If you use this calculator in research, you may cite the software and report the statistical methods separately. Citation is appreciated, not required. No DOI is registered for this release.
Biotech Insight Solutions. ResearchTools: Descriptive Statistics (version 1.4) [Software]. 2026. Available at: https://tools.biotech-insight.com/tools/descriptive-statistics/
A citation cannot replace a methods description or independent verification. Report version, statistical assumptions and data-processing choices.