How to Double your Money in a Day (24 Hours or Less in 2022!)

Time Horizon and Risk Tolerance

Your investing time horizon is an extremely important determinant of the amount of investment risk you can handle and is generally dependent on your age and investment objectives. For example, a young professional likely has a long investment horizon, so they can take on a significant amount of risk because time is on their side when it comes to bouncing back from any losses. But what if they’re saving to buy a house within the next year? In that case, their risk tolerance will be low because they cannot afford to lose much capital in the event of a sudden market correction, which would jeopardize their primary investment objective of buying a house.

Likewise, conventional investing strategy suggests that people in or near retirement should have their funds deployed in "safe" investments like bonds and bank deposits, but in an era of extremely low interest rates, that strategy carries its own risk, mainly of the loss of purchasing power through inflation. In addition, a retired individual in their 60s with a decent pension and no mortgage or other liabilities would probably have a reasonable amount of risk tolerance.

Let’s now turn to the “time and risk” attributes of an investment itself. An investment that has the potential to double your money in a year or two is undoubtedly more exciting than one that may do so in 20 years. The issue here is that an exciting, high-growth investment will almost certainly be far more volatile than a staid, “Steady Eddy” type of investment. The higher the volatility of an investment, the riskier it is. This increased volatility or risk is the price an investor pays for the allure of higher returns.

The Risk-Return Tradeoff The risk-return tradeoff refers to the fact that there is a strong positive correlation between risk and return. The higher the expected returns from an investment, the greater the risk; the lower the expected returns, the lower the risk.

How long does it take to double one's money?

The Rule of 72 is a well-known shortcut for calculating how long it will take for an investment to double if its growth compounds annually. Just divide 72 by your expected annual rate of return. The result is the number of years it will take to double your money.

When dealing with low rates of return, the Rule of 72 provides a fairly accurate estimate of doubling time. However, that estimate gets less precise at very high return rates, as can be seen in the chart below, which compares the estimates for “time to double” (in years) generated by the Rule of 72 and the actual number of years it would take for an investment to double in value.

Rate of Return Rule of 72 Actual no. of Years Difference (no.) of Years 2% 36.0 35.0 1.0 3% 24.0 23.5 0.5 5% 14.0 14.2 0.2 7% 10.3 10.2 0.1 9% 8.0 8.04 0.0 12% 6.0 6.1 0.1 25% 2.9 3.1 0.2 50% 1.4 1.7 0.3 72% 1.0 1.3 0.3 100% 0.7 1.0 0.3

Key Takeaways There are five key ways to double your money, ranging from a conservative strategy of investing in savings bonds to an aggressive approach that involves investing in speculative assets such as options, penny stocks, or cryptocurrencies. The classic approach of doubling your money by investing in a diversified portfolio of stocks and bonds is probably the one that is applicable to most investors.Broadly, investing to double your money can be done safely over several years, or quickly, although for those who are impatient, there’s more of a risk of losing most or all of their money. Though doubling your money is a realistic goal that most investors can strive toward, there are some caveats—be honest about your risk tolerance; don't let greed and fear have an adverse impact on your investment decisions; and be extremely wary about get-rich-quick schemes that promise you "guaranteed" sky-high results with minimal risk.One of the best ways to double your money is to take advantage of retirement and tax-advantaged accounts offered by employers, notably 401(k)s.


Who invented the Rule of 72?

The earliest known reference to the Rule of 72 comes from Luca Pacioli's 1494 book, "Summa de Arithmetica." This book went on to be used as an accounting textbook until the mid-1600s, granting Pacioli the title of the Father of Accounting.


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How To Double Your Money

The Rule of 72 teaches us that a wonderful investment that produces high returns will help double your money fast. 

I like to target an average annual growth rate of 26%. 

This means my money will double every 3 years. But you can’t get these high returns with just any investment. You have to pick the right companies that will generate great returns year over year. 

To get a great return on your money, first, you have to learn how to invest. Join me at my next Free Investing Webinar to learn, not only the basics of investing but also know how you can find incredible companies that will give you that 26% annual return. 

Once you know this, you’ll be able to experience the magic of compound interest for yourself and double your money in no time. 

  		  		Phil Town Phil Town

Phil Town is an investment advisor, hedge fund manager, 3x NY Times Best-Selling Author, ex-Grand Canyon river guide, and former Lieutenant in the US Army Special Forces. He and his wife, Melissa, share a passion for horses, polo, and eventing. Phil’s goal is to help you learn how to invest and achieve financial independence.


Article NameThe Rule of 72: Learn How To Double Your Money with Compound Interest DescriptionUse The Rule of 72 to make better investing choices by figuring out how long it takes investments to double. Start benefiting from compound interest now! Author Phil Town Publisher Name Rule One Investing Publisher Logo

How to Double $10k Quickly

If you have $10k to invest and want some quick returns, investing in websites might be your best option.

For example, my personal finance website now makes thousands of dollars each month in passive income.

You can purchase a website from sites like Flippa or EmpireFlippers to start making money online.

4. Trade cryptocurrency

The volatility of cryptocurrency – whether it’s Bitcoin, Ethereum or Dogecoin – is an opportunity for speculators to make money trading. Of course, it’s an opportunity to lose money as well, but that’s always part of the trade-off if you’re looking to double your money quickly.

While many cryptos have soared over the last year, they can bounce around significantly, making it tough to hold on when they fall. It can be easy to buy high and sell low and bail out when prices crash, and you’ll end up putting money in someone else’s pocket instead of yours.

It’s easy to lose money on cryptocurrency if you can’t manage your positions, and there are much easier and lower-risk ways to double your 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. 

Here’s an example of other rates of return and how the Rule of 72 affects your investment:

Rate of Return Years it Takes to Double 1% 72 2% 36 3% 24 4% 18 5% 14.4 6% 12 7% 10.3 8% 9 9% 8 10% 7.2 11% 6.5 12% 6

However, the calculation isn’t foolproof. If you have a little more time and want a more accurate result, you can use the following logarithmic formula:

T = ln(2) / ln(1+r)

In this equation, “T” is the time for the investment to double, “ln” is the natural log function, and “r” is the compounded interest rate. 

So, to use this formula for the $100,000 investment mentioned above, with a 6% rate of return, you can determine that your money will double in 11.9 years, which is close to the 12 years you'd get if you simply divided 72 by 6. 

Here's how the logarithmic formula looks in this case: 

T = ln(2) / ln(1+.06)

If you don’t have a scientific calculator on hand, you can usually use the one on your smartphone for advanced functions. However, the basic calculation can give you a good ballpark figure if that’s all you need.

What s the Single Best Way to Double Your Money?

It really depends on your risk tolerance, investment time horizon, and personal preferences. A balanced approach that involves investing in a diversified portfolio of stocks and bonds works for most people. However, those with higher risk appetites might prefer dabbling in more speculative stuff like small-cap stocks or cryptocurrencies, while others may prefer to double their money through real estate investments.

How soon can you double your money? Look to the Rule of 72

Everyone wants to know how soon they can double their money. There’s actually a simple trick that allows you to quickly estimate when you can double your money. It’s called the Rule of 72.

The principle is simple. Divide 72 by the annual rate of return to figure how long it will take to double your money. For example, if you earn an 8 percent annual return, it will take about 9 years to double. So the higher the return, the faster you can double your money.

But remember it’s an estimate, so your number will give you only an approximate number. Plus, the bigger issue is if you’re investing in financial markets, your return will vary significantly from year to year. This means your returns are likely to be much more lumpy each year than the averages.

2. Let compound interest do the work for you

Compound interest is essentially when you earn interest on your interest. It can help your money grow exponentially over time. When you take advantage of compound interest, you can effortlessly double your money.

For example, say you invest $1,000 right now and you’re earning an 8% average annual return on your investments. Even if you don’t make any additional contributions, you’ll double your initial investment in around nine years.

If you want your money to grow faster, you can invest a small amount each month. Say that in addition to your initial $1,000 investment, you also invest $100 per month. Assuming you’re still earning an 8% average annual return, here’s approximately how much you’d have over time:

  • $2,000 in less than one year
  • $8,500 in five years
  • $19,500 in 10 years
  • $60,000 in 20 years

The more time you give your money to grow, the more you’ll earn. After a few decades, you’ll be doubling your money over and over again.

The quickest way to double your money

If you’re trying to double your money in under a year, your best bet is searching for ways to decrease your spending and increase your income. These are activities where you have greater control and short term change is possible.

Sure, you can also consider investing in cryptocurrencies or angel investments, but the risk is always a lot higher and we wouldn’t recommend putting your life savings into volatile investments.

However, if you aren’t in a rush and are looking for long-term solutions, investments that work when you sleep and offer high rates of return are the best solution.

With something like P2P investing, you don’t need to research any companies or rebalance your portfolio, and returns are a lot higher than other investment vehicles such as savings accounts, bonds and even the stock market.

Setting up an account is free, quick and easy – and with Swaper you’ll get your returns deposited in your account every month.


This brings the post to an end. Doubling up your money is surely not the easiest process in the world, especially if you want to make it happen quick. But if you follow these unique steps and tips, you will surely find help.

On that note, good luck and here’s hoping you find the best investment plans so that your money is doubled in a safe manner over the year. Plus if you have any feedback regarding the post, then do post your questions and comments below. We would love to hear from you!


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