Mann-Whitney U Test Calculator

Compare two independent samples using the Mann-Whitney U test (Wilcoxon rank-sum test)

Enter data for both samples to see results

About Mann-Whitney U Test

The Mann-Whitney U test is a non-parametric test that compares two independent samples to determine whether they come from the same distribution.

It is used when the assumptions of the independent t-test are not met (e.g., non-normal distributions).

The test ranks all observations and compares the sum of ranks between groups.

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Editorial Note

MyCalcBuddy Editorial Team

This page is maintained as an educational calculator reference.

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Formula Source: Standard Mathematical References

by Various

🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.