Enter the R-squared (coefficient of determination) value of the data set into the calculator to determine the variance inflation factor.

Variance Inflation Factor Formula

The following formula is used to calculate a variance inflation factor.

VIF = 1 / (1-R^2 )
  • Where VIF is the variance inflation factor
  • R2 is the coefficient of determination of the regression equation

To calculate a variance inflation factor, divide 1 by 1 minus the coefficient of determination.

Variance of Inflation Definition

A variance of inflation is defined as the quotient of the variance in a model with multiple terms by the variance in a model with one term alone.

Variance Inflation Factor Example

How to calculate variance of inflation?

  1. First, determine the coefficient of determination.

    Calculate the coefficient of determination of the data set or model.

  2. Next, calculate the VIF.

    Calculate the variance inflation factor using the equation above.


What does VIF stand for?

In statistics, VIF stands for the variance inflation factor.