# What is the 72 rule in finance?

## What is the rule of 69 in accounting?

The rule of 69 is used to estimate the amount of time it will take for an investment to double, assuming interest is compounded continuously. To see also : **Is 10m net worth rich?**. The calculation involves dividing 69 by the rate of return on an investment and then adding 0.35 to the result.

What is the rule of 69 in finance? The Rule of 69 is a simple calculation to estimate the time required for an investment to double if you know the interest rate and if the interest is compounded. For example, if a **real** estate investor can earn twenty percent on an investment, divide 69 by the 20 percent return and add 0.35 to the result.

### What is the rule of 70 and how does it work use an example?

In the rule of 70, the â70â represents the dividend or divisible number in the formula. Divide your growth rate by 70 to determine the amount of time it will take to double your **investment**. For example, if your mutual fund has a three percent growth rate, divide 70 by three.

## Why is the Rule of 72 work?

The actual number of years comes from a logarithmic calculation, one that cannot really be determined without having a calculator with logarithmic capabilities. On the same subject : **Is field hockey an easy sport to learn?**. That’s why the rule of 72 exists; basically lets you figure out how long it will take to double yourself without needing an actual physical calculator on your person.

Does the rule of 72 always work? The rule of 72 is derived from a more complex calculation and is an approximation and therefore not perfectly **accurate**. The most accurate Rule of 72 results are based on the 8 percent interest rate, and the further away from 8 percent you go in either direction, the less accurate the results will be.