Calculate how much time it will take your original investment to double based on the interest rate.

%Utilize the **Rule of 72** to estimate what amount of time it will require to double an investment
at a given interest rate. Divide 72 by the interest rate to perceive what amount of time it will require
to double your money on an investment.

Then again you can calculate what interest rate you need to double your investment inside a specific time span. For instance assuming you needed to double an investment in 5 years, divide 72 by 5 to discover that you'll have to procure 14.4% interest annually on your investment for quite some time: 14.4 × 5 = 72.

The **Rule of 72** is to work on a rendition of the more elaborate compound interest calculation. It is a helpful rule
of thumb for assessing the multiplying of an investment. This calculator gives both the **Rule of 72 calculator** just
as the exact answer resulting from the formal compound interest calculation.