en.wikipedia.org/wiki/Rule_of_72

In finance, the rule of 72, the rule of 70 and the rule of 69.3 are methods for estimating an investment's doubling time. The rule number (e.g., 72) is divided by the ...

www.investopedia.com/terms/r/ruleof72.asp

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 ...

www.investopedia.com/ask/answers/04/040104.asp

Apr 4, 2017 ... The 'Rule of 72' is a simplified way to determine how long an investment will take to double, given a fixed annual rate of interest. By dividing 72 ...

www.moneychimp.com/features/rule72.htm

The rule says that to find the number of years required to double your money at a given interest rate, you just divide the interest rate into 72. For example, if you ...

www.khanacademy.org/economics-finance-domain/core-finance/interest-tutorial/compound-interest-tutorial/v/the-rule-of-72-for-compound-interest

Using the Rule of 72 to approximate how long it will take for an investment to double at a given interest rate.

betterexplained.com/articles/the-rule-of-72

The Rule of 72 is a great mental math shortcut to estimate the effect of any growth rate, from quick financial calculations to population estimates. Here's the ...

www.primerica.com/public/rule-of-72.html

The Rule of 72 is an easy way to calculate just how long it's going to take for your money to double.

www.businessinsider.com/why-the-rule-of-72-works-2014-12

Dec 29, 2014 ... That trick is the rule of 72: Take your interest rate, and divide it into 72. For example: If you expect a 6% average annual return, the doubling ...

www.thebalance.com/whats-the-rule-of-72-4040505

May 1, 2016 ... The Rule of 72 is a simple calculation to help determine how long it will take for an investment to double in value.