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Rule of 72
![]() ![]() Take the interest rate and divide into 72. This tells you "approximately" how long it will take for your money to double.
![]() Example:72/11.6 = 6.2 Years
![]() Now in 2021, money invested in money market funds at 1% the doubling time is about 72 years,
![]() and at 0.01% it’ll be about 7200 years.
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