Definition of Rule Of 70



Rule of 70 is an estimation of assessing the number of years to double the rate of return or growth rate. We simply divide 70 with the current growth rate to get the number of years to double the growth rate. The formula for the rule of 70 is as follows:

 


Years to double the rate = 70 / current rate of return

Assume that the current growth rate of a company is 5%, to estimate the number of years to double this growth rate can be estimated using the rule of 70 formula.

 

Years to double the growth rate = 70 / current rate of growth

Years to double the growth rate = 70 / 5 = 14 years

 

From the formula above it is estimated that the company will achieve a growth rate of 10% after 14 years of time. Although it is a rough estimate yet it is very effective.


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