The Rule of 72

The 'Rule of 72' is a simple way of determining the number of years your investment will take to double, given a fixed annual rate of interest.

By dividing 72 by the interest percentage per year, you can get an approximation of how many years it will take for the initial investment to duplicate itself.

Here is video to further explain the concept.



Make your money grow by making time your friend. The rule of 72 will tell you how long the wait is.