# Why 0.35 is added in rule of 69?

By Nick

### Quick Peek:

Investors can use the rule of 69 to estimate the number of years it will take for their investment to double in value based on the rate of return. However, to get a more accurate result, they should add 0.35 to the outcome. For instance, if someone invests in a bank FD with a 5% rate of return, their investment will double in approximately 14.15 years. It’s crucial to consider factors such as interest rates, investment duration, and tax implications when investing in a bank FD.

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

Investing in a bank FD (fixed deposit) is a popular way of earning interest on savings. However, it can be difficult to calculate the amount of time it will take for the investment to double. This is where the rule of 69 comes in handy. The rule of 69 is a formula used to estimate the number of years it will take for an investment to double in value, based on the rate of return.

The formula is simple: divide 69 by the rate of return. For example, if the rate of return is 5%, the amount will double in 69/5 or 13.8 years. However, 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.

### Why 0.35 is Added in Rule of 69?

The rule of 69 is not an exact science, but rather a rough estimate. It assumes that the interest earned is compounded annually, and that the rate of return remains constant over time. However, in reality, interest is usually compounded more frequently, and the rate of return can fluctuate.

READ  Should you still invest in Bitcoin?

Adding 0.35 to the result of the formula helps to account for these factors. It provides a more accurate estimate of the time it will take for an investment to double, based on the actual rate of return and compounding frequency.

### Factors to Consider When Investing in a Bank FD

When investing in a bank FD, there are several factors to consider. Firstly, the interest rate offered by the bank is important. Higher interest rates mean higher returns, but also higher risk. It is important to choose a bank with a good reputation and a solid financial track record.

Secondly, the duration of the investment is important. Longer durations usually offer higher interest rates, but also tie up the funds for a longer period of time. It is important to choose a duration that suits your financial goals and needs.

Lastly, it is important to consider the tax implications of the investment. Interest earned on a bank FD is taxable, and the tax rate varies depending on the individual’s income bracket. It is important to factor in the tax implications when calculating the actual rate of return on the investment.

### In Conclusion

The rule of 69 is a useful formula for estimating the time it will take for an investment to double in value, based on the rate of return. However, to get a more precise outcome, we should add 0.35 to the result. When investing in a bank FD, it is important to consider factors such as the interest rate, duration of the investment, and tax implications. By taking these factors into account, investors can make informed decisions and maximize their returns.