- THE RULE OF 72 -

Double Your Money!

Reduce Your Debt!


The Rule of 72 is a math formula that tells you how long it will take to double the value of the money you invest:
  • Find out your interest rate...
  • Second... do the math!
72 / interest rate = years

Example: $100.00 invested at 6% interest rate
72 / 6 = 12 years --> In 12 years $100 will double at 6%!


In order to double your money within a certain amount of years, you can flip flop the Rule of 72 to find out what percent rate at which you need to invest:
  • Decide the number of years you want to invest...
  • Second ... do the math!
72 / years = interest rate

Example: $100 invested for 8 years
72 / 8 = 9 (% interest rate) --> In 8 years $100 will double at 9%!


Try it! Use the interactive calculator to demonstrate "The Rule of 72"
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