🔗 Spearman’s Correlation Calculator
Enter up to 6 paired x,y data points to calculate Spearman’s rank correlation coefficient (rho).
What this calculator does
Spearman’s rank correlation coefficient (rho) measures how strongly two variables are related when that relationship may be monotonic (consistently increasing or decreasing) but not necessarily a straight line, and it works well even when the data contains outliers or is ranked rather than measured on a precise numeric scale.
How the calculation works
The calculator converts each variable’s values into ranks (tied values share the average of their ranks), then applies the standard Pearson correlation formula to those ranks instead of the raw values. The result, rho, ranges from -1 (a perfect decreasing relationship) to +1 (a perfect increasing relationship), with 0 meaning no monotonic relationship.
Enter at least 2 complete x,y pairs; leaving a pair blank simply excludes it. This tool is for general and educational statistical use.