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Linear Regression Calculator

This calculator performs simple linear regression and produces an equation for the line of best fit for the provided predictor and response values.

To use the calculator, enter a list of comma-separated values for the predictor variable and response variable then click the Do Linear Regression button.

Regression Line:
y = + x

Goodness of fit:
Correlation r =
R-Squared =

The y-intercept is the mean of the response variable when the predictor variable is equal to zero

For each single unit increase in the predictable variable there is an associated average change of in the response variable.

The R-squared variable tell us that % of the variation in the response variable is predictable from the predictor variable.