Rule of 72 Reverse: Rate Needed to Double Money in 10 Years
What annual return rate is needed to double an investment in 10 years, using the Rule of 72 in reverse.
To double an investment in 10 years, you would need an annual return of approximately 7.20%.
Rate needed
7.20%
to double in 10 years
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The Rule of 72 is an approximation, most accurate for rates between 6% and 10%. For a precise doubling time at any rate, use the Compound Interest Calculator.