Rule of 72, 114, 144

Quick Summary: Rule of 72, 114, 144

The Rule of 72 is a quick shortcut to estimate how many years it takes to double your money. Divide 72 by your annual return rate (e.g., at 12% returns, money doubles in 6 years). Similarly, the Rule of 114 is for tripling and 144 is for quadrupling your investment.