Calculators and The Rule of 72

Calculators and The Rule of 72

The Rule of 72

The rule of 72 is a shortcut to estimate the number of years required to double your money at a given annual rate of return. The rule states that you divide the rate, expressed as a percentage, into 72: Years required to double investment = 72 ÷ compound annual interest rate.

72/ 3%  = 24 YEARS TO DOUBLE

72/ 6%  = 12 YEARS TO DOUBLE

72/ 9%  = 8 YEARS TO DOUBLE

72/ 10%  = 7.2 YEARS TO DOUBLE

72/ 12%  = 6 YEARS TO DOUBLE

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