Math & Science

Pearson Correlation

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Calculate the Pearson correlation coefficient (r) between two data series. Paste comma-separated X and Y values to get r, R², strength interpretation, and descriptive statistics. Free, instant, client-side.

X series — separate by commas or spaces

Y series — same number of values as X

guide

How to Calculate the Pearson Correlation Coefficient (2026)

How to Calculate the Pearson Correlation Coefficient — free online tool and guide with examples.

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