Kruskal-Wallis Test Calculator

Group A Val 1

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Group A Val 3

Group B Val 1

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Group C Val 1

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Group C Val 3

Formula

H = [12/(N(N+1))] * sum(Ri^2/ni) - 3(N+1)

What is the Kruskal-Wallis test?

A non-parametric alternative to one-way ANOVA that compares three or more independent groups using ranks.

Free one-way ANOVA calculator. Compare means across multiple groups with F-statistic, p-value estimation, and between/within group variance analysis.

Free Mann-Whitney U test calculator. Non-parametric test to compare two independent groups using ranks. Calculate U-statistic and z-approximation.