Coefficient of Determination (R-squared) Calculator

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Calculates the proportion of the variance in the dependent variable that is predictable from the independent variable(s) in a regression.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Sum of Squares Regression (SSR) and Sum of Squares Total (SST) in the units shown.

Step 2

Read Coefficient of Determination (R-squared) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

See the inputs and their calculated results.

Sum of Squares Regression (SSR): 100; Sum of Squares Total (SST): 200

Coefficient of Determination (R-squared): 0.5

Sum of Squares Regression (SSR): 50; Sum of Squares Total (SST): 200

Coefficient of Determination (R-squared): 0.25

Sum of Squares Regression (SSR): 150; Sum of Squares Total (SST): 200

Coefficient of Determination (R-squared): 0.75

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