Rule of 72            
The Rule of 72 is an easy way to
estimate how long it will take your
investment to double in value.
Just divide 72 by the rate of return  to 
see how many years it will take to double.
                   
  Rate of return         Years to Double 
 
     
                   
 
     
                   
 
     
                   
Assumptions
The rate of return is compounded annually. The maximum return you can enter is 20%.
Disclaimer
This calculator is for illustrative purposes only. Depending on changes in the rate of return 
over time, what you’re invested in, how you invest it, how interest is applied, and possible 
tax implications, the actual amount of time needed to double your money will vary. You
should not rely on the results as indication of your financial needs and we recommend 
that you seek out your own investment, legal, tax or professional advice.
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