Power of 72 Calculator

This is a quick way to calculate how long it will take to double your money if it is invested at a particular interest rate. It is all about the power of time. You take the interest rate you expect to earn and divide it into 72. If you expect a return of 6%, 72/ 6 = 12, it will take 12 years to double your money.

Here's how it works

To find out how fast your investments will double, enter an interest rate:

Interest rate: %

= 00 years

Now flip this around

To calculate the interest rate you need to double your money, enter the number of years. For example, if you want to double your $3,000 in 6 years, divide 72 by 6 and you will need to earn 12%.

Interest rate: 00%

= years

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Power of 72 Calculator

Here's how it works

Now flip this around