Statistics Calculator
Generate comprehensive mathematical summaries for any messy dataset instantly. Copy-paste raw numbers to calculate your Central Tendency, Total Spread, and Distribution Positions.
Last updated: February 24, 2026
Just need the Standard Deviation formula specifically? Try the SD Calculator
Raw Dataset Core
Statistical Analysis
Central Tendency
Variance & Spread
Positions & Limits
Understanding Your Summary
These metrics attempt to identify where the exact 'middle' or 'typical' value of your dataset lives.
Depending on data skew, the Median is often a much safer representation of an average reality than the Mean formula.
Variance and Standard Deviation measure how wildly your numbers bounce away from the central Mean.
A massive standard deviation suggests highly chaotic data. A tiny standard deviation means almost every data point clusters right on top of the calculated Mean.
Quartiles systematically break your ordered data list into distinct 25% percentile slices.
By subtracting Q1 from Q3 to find the Interquartile Range (IQR), you can mathematically isolate the core 50% behavior trend, completely ignoring wild outlier spikes.
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