The Rule of 72 formula is a quick and simplified way to determine how many years it will take for your investment to double in value as a result of compound interest.

The Rule of 72 formula is defined as:

\(T\) \(=\) \(\dfrac{72}{Rate\text{ }of\text{ }Return}\)

\(T\): The time which it will take for your investment to double

\(Rate\text{ }of\text{ }Return\): How much do you expect the average annual return to be?

The time is measured in: \(years\)

## Years To Double

Use this calculator to find out how many years it will take for your investment to double.

How much do you expect the average annual return to be?

\(Rate\text{ }of\text{ }Return\)

\(\%\)

Please note, that all calculators provided are for informational and educational purposes ONLY, and should NOT be taken as professional financial advice.

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