Statistics Calculator

📊 Statistics Calculator

Enter Dataset

Enter numbers separated by commas, spaces, newlines or tabs (minimum 2 values required)

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Data Type

Sample Data (divide by n-1 for std/variance)

Population Data (divide by n for std/variance)

Precision (decimal places)

Calculate These Statistics

Basic Statistics (mean, median, mode, range)

Dispersion (std dev, variance, IQR)

Distribution (skewness, kurtosis)

Quantiles (quartiles, percentiles)

Dataset Summary

Number of Values (n)

Sum

Minimum Value

Maximum Value

Basic Statistics

Arithmetic Mean

Median (Q2)

Mode

Range (Max-Min)

Geometric Mean

Harmonic Mean

Dispersion Statistics

Variance

Standard Deviation

Coefficient of Variation

Interquartile Range (IQR)

First Quartile (Q1)

Third Quartile (Q3)

Distribution Statistics

Skewness

Kurtosis

Mean Absolute Deviation

Median Absolute Deviation

Quantiles & Percentiles

25th Percentile (Q1)

50th Percentile (Median)

75th Percentile (Q3)

90th Percentile

Notes:

Sample standard deviation uses n-1 (Bessel's correction) for unbiased estimation
Population standard deviation uses n (no correction)
Skewness: positive = right-skewed, negative = left-skewed, 0 = symmetric
Kurtosis: positive = leptokurtic (sharp peak), negative = platykurtic (flat peak), 0 = mesokurtic (normal)
Mode is the most frequently occurring value (may have multiple modes)