How to Double Your Money Every Seven Years (2024)

FAQs

How to Double Your Money Every Seven Years? ›

1 At 10%, you could double your initial investment every seven years (72 divided by 10). In a less-risky investment such as bonds, which have averaged a return of about 5% to 6% over the same period, you could expect to double your money in about 12 years (72 divided by 6).

All you do is divide 72 by the fixed rate of return to get the number of years it will take for your initial investment to double. You would need to earn 10% per year to double your money in a little over seven years.

How the Rule of 72 Works. For example, the Rule of 72 states that $1 invested at an annual fixed interest rate of 10% would take 7.2 years ((72/10) = 7.2) to grow to $2.

One of those tools is known as the Rule 72. For example, let's say you have saved $50,000 and your 401(k) holdings historically has a rate of return of 8%. 72 divided by 8 equals 9 years until your investment is estimated to double to $100,000.

The classic approach of doubling your money by investing in a diversified portfolio of stocks and bonds is probably the one that applies to most investors. Investing to double your money can be done safely over several years, but for those who are impatient, there's more of a risk of losing most or all of their money.

Let's walk through the scenario. With $300,000 planned for your use as a retiree, a retirement age of 50, and an anticipated life expectancy of 85 years, you need that money to last you 35 years. This should mean that your yearly income is around $8,571, and your monthly payment is around $714.

1 At 10%, you could double your initial investment every seven years (72 divided by 10). In a less-risky investment such as bonds, which have averaged a return of about 5% to 6% over the same period, you could expect to double your money in about 12 years (72 divided by 6).

Let's say your initial investment is $100,000—meaning that's how much money you are able to invest right now—and your goal is to grow your portfolio to $1 million. Assuming long-term market returns stay more or less the same, the Rule of 72 tells us that you should be able to double your money every 7.2 years.

While quite a few personal finance pundits have suggested that a stock investor can expect a 12% annual return, when you incorporate the impact of volatility and inflation, 7% is a more accurate historical estimate for an aggressive investor (someone primarily invested in stocks), and 5% would be more appropriate for ...

Can You Retire at 50 With $300k? It may be possible if you have low expenses and income from other sources. Assuming a 4% withdrawal rate, the funds might generate $12,000 of annual income. That's probably not enough for most people, and you typically don't get Social Security until your 60s.

How much do I need in a 401k to get $2 000 a month? ›

With the $1,000 per month rule, if you plan to withdraw 5% of your savings each year, you'll need at least $240,000 in savings. If you aim to take out $2,000 every month at a withdrawal rate of 5%, you'll need to set aside $480,000. For $3,000, you would aim to save $720,000.

So to answer the question, we believe having one to one-and-a-half times your income saved for retirement by age 35 is a reasonable target. By age 50, you would be considered on track if you have three-and-a-half to six times your preretirement gross income saved.

If you keep saving, you can get there even faster. If you invest just $500 per month into the fund on top of the initial $100,000, you'll get there in less than 20 years on average. Adding $1,000 per month will get you to $1 million within 17 years. There are a lot of great S&P 500 index funds.

nm97 wrote: A sum of money doubles itself in 7 years. In how many years it becomes four fold? If the initial amount of money is x dollars, then 7 years later, it will be 2x dollars, and in another 7 years, it will be 4x dollars. Thus, it takes 14 years to quadruple the initial amount money.

How To Use the Rule of 72 To Estimate Returns. Let's say you have an investment balance of $100,000, and you want to know how long it will take to get it to $200,000 without adding any more funds. With an estimated annual return of 7%, you'd divide 72 by 7 to see that your investment will double every 10.29 years.

In short, the average stock market return since the S&P 500's inception in 1926 through 2018 is approximately 10-11%. When adjusted for inflation, it's closer to about 7%. [Since we're talking citations in this post: Investopedia.]