Online Calculators > Financial Calculators > Rule of 72 Calculator

Rule of 72 Calculator

Rule of 72 Calculator calculates how long it will take to double your money or investment given an interest rate. Rule of 72 states that the years required to double your money at a given interest rate, simply divide the interest rate into 72.

Rule of 72 Calculator

Interest Rate: %

Doubling Time

Exact Answer 14.21
Rule of 72 Estimate 14.40

What is the Rule of 72?

What is The Rule of 72 or the rule of 72 formula is a quick and easy formula to estimate the number of years it takes to double an investment given an annual rate of return.

The rule of 72 formula given below

Years to Double Your Money = 72/Interest Rate

For example, to find out how long it will take to double your money givin an interest rate of 5%, simply divide

72/5 = 14.40 which is very close to the actual value of 14.21.




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