Statistics Kingdom

Basic Statistics Online

Free set of basic statistics calculators — descriptive stats, central tendency, variability, probability and combinatorics.

23 free calculators Step-by-step results No signup

Descriptive statistics 4 tools

Statistics Calculator by category Descriptive Statistics per variable Measures of Dispersion SD, variance, CV, SEM Mean Median Mode Q1, Q3, IQR, range

Central tendency 4 tools

Average sum, count Sample Mean sum, count Geometric Mean product, nth root Harmonic Mean n / Σ(1/xᵢ)

Variability 7 tools

Standard Deviation SD, S, charts Variance population, sample Coefficient of Variation SD / mean Pooled Variance equal / unequal Mean Absolute Deviation MAD Median Absolute Deviation MAD Skewness & Kurtosis shape, tails

Percentile & outliers 2 tools

Percentile relative standing Outliers Tukey's fences, Z-score

Probability & combinatorics 4 tools

Probability Bayes, dependent events Combinations Order doesn't matter
with/without repetition Permutations Order matters
with/without repetition Combinations Generator list all outcomes

Odds & Markov chains 3 tools

Markov Chain steady-state vector Odds odds ↔ probability Betting Odds fractional, decimal, American