# Why 0.35 is added in rule of 69? By Nick

### Quick Peek:

Looking to calculate how long it will take for your investment to double? The rule of 69 is a simple formula, but for a more precise outcome, add 0.35 to the result. This accounts for the fact that interest is usually compounded on a monthly or quarterly basis, which can slightly increase the time it takes for an investment to double. Keep in mind that the rule of 69 is just an estimate and many factors can affect an investment’s growth potential.

## To Get a More Precise Outcome, We Should Add 0.35 to the Result

When it comes to investing, it’s important to have a clear understanding of the rate of return and how long it will take for your investment to double. This is where the rule of 69 comes in handy. The rule of 69 is a simple formula that helps you calculate the number of years it will take for your investment to double based on the rate of return. However, to get a more precise outcome, we should add 0.35 to the result.

Let’s take a closer look at this concept. Suppose you want to invest in a bank FD that gives a rate of return of 5%. According to the rule of 69, your investment will double in 69/5 or 13.8 years. However, this calculation is not entirely accurate. To get a more precise outcome, we should add 0.35 to the result. In this case, the amount will double in ((69 / 5) + 0.35) or 14.15 years.

But why do we add 0.35 to the result? The reason is that the rule of 69 assumes a continuous compounding of interest, which is not always the case in real life. By adding 0.35 to the result, we account for the fact that interest is usually compounded on a monthly or quarterly basis, which slightly increases the time it takes for your investment to double.

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It’s important to note that the rule of 69 is not a foolproof formula, and there are many factors that can affect the rate of return and the time it takes for your investment to double. However, it’s a useful tool that can give you a rough estimate of your investment’s growth potential.

In conclusion, the rule of 69 is a simple and effective formula for calculating the time it takes for your investment to double based on the rate of return. However, to get a more precise outcome, we should add 0.35 to the result. This small adjustment accounts for the fact that interest is usually compounded on a monthly or quarterly basis, which can slightly increase the time it takes for your investment to double. By using this formula, you can make more informed investment decisions and achieve your financial goals.

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