Math & Science
Linear Regression
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Calculate the linear regression line for a set of (x, y) data points. Get slope, intercept, R², Pearson r, and predict Y for any X value. Free, instant, no signup.
Accepted formats: x,y or x y or (x,y) — one pair per line. Minimum 2 pairs.
How to Calculate a Linear Regression (2026)
How to Calculate a Linear Regression — free online tool and guide with examples.