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Statistics Calculator

Calculate mean, median, standard deviation, quartiles with histogram.

Statistics Calculator

📖How to Use
  1. 1Enter data values (comma or newline separated)
  2. 2Mean, median, mode, variance, and standard deviation are calculated automatically
  3. 3Visualize the distribution with histograms and box plots
💡Tips & Knowledge
  • When outliers are present, the median better reflects the typical value than the mean
  • A smaller standard deviation means data is more tightly clustered around the mean
  • For normal distributions, ±1σ covers ~68% and ±2σ covers ~95% of data (68-95-99.7 rule)

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All calculations run in your browser. No data is sent to any server.