Free business calculator
Business Metric Outlier Finder
Paste a list of numbers and flag values that sit far outside the middle spread.
- Instant results
- Private in your browser
- PDF report included
Use the result well
A clear answer, with the assumptions visible
These recommendations turn the result into an operational next step without hiding the inputs behind a score.
- 1
Check unusual values against the source record.
- 2
Keep real rare events when they matter to the decision.
- 3
Compare one consistent metric, unit, and time period.
How this tool works
- Read finite numbers and sort them.
- Use jStat to calculate quartiles, mean, and sample standard deviation.
- Flag values below Q1 or above Q3 by the selected IQR multiplier.
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