Internal Growth Rate (IGR) Calculator

Use the simple finance calculator tool that helps you to calculate the internal growth rate (IGR) for your leverage problems.

Return on assets :
Retained earning rate :
Internal Growth Rate :


IGR = (ROA × b) / (1 - ROA × b)


  • ROA - The Return on Assets - is the annual net profit divided by the average book value of assets at the beginning and end of the year.
  • b - retained earning rate
  • IGR - internal growth rate