The coefficient of determination, often denoted R², is the proportion of variance in the response variable that can be explained by the predictor variables in a regression model.

This calculator finds the coefficient of determination for a given regression model.

Simply enter a list of values for x (the predictor variable) and y (the response variable) in the boxes below, then click the “Calculate” button:

12, 13, 14, 15, 15, 22, 27

11, 13, 14, 14, 15, 16, 18

Coefficient of Determination (R²): 0.8368

Interpretation: 83.68% of the variation in the response variable can be explained by the predictor variable.