How long does it take to double your money? (2024)

FAQs

How long does it take to double your money? ›

This is very simple rule. Simply divide 72 by the Annual Interest Rate and this is the time it will take you to double up your money. For e.g.:- If you Invest 10,000 at 8% p.a., it will take you 9 years (72/8), to double up your money. The above Rule is an approximation.

So, if the interest rate is 6%, you would divide 72 by 6 to get 12. This means that the investment will take about 12 years to double with a 6% fixed annual interest rate. This calculator flips the 72 rule and shows what interest rate you would need to double your investment in a set number of years.

The value 72 is a convenient choice of numerator, since it has many small divisors: 1, 2, 3, 4, 6, 8, 9, and 12. It provides a good approximation for annual compounding, and for compounding at typical rates (from 6% to 10%); the approximations are less accurate at higher interest rates.

Dividing 72 by the annual rate of return gives investors an estimate of how many years it will take for the initial investment to duplicate. It is a reasonably accurate estimate, especially at low interest rates.

The $1 rule is simple: If something will cost $1 or less per use, it's okay to buy. A $10 item should get at least 10 uses. A $100 item should get 100 uses, and so on. The rule is easy to apply.

How can I double $5000 dollars? One way to potentially double $5,000 is by investing it in a 401(k) account, especially if your employer matches your contributions. For example, if you invest $5,000 and your employer offers to fully match at 100%, you could start with a total of $10,000 in your account.

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.

Rules of 72, 69.3, and 69

The Rule of 72 states that by dividing 72 by the annual interest rate, you can estimate the number of years required for an investment to double. The Rule of 69.3 is a more accurate formula for higher interest rates and is calculated by dividing 69.3 by the interest rate.

The classic approach to doubling your money is investing in a diversified portfolio of stocks and bonds, which is likely the best option for most investors. Investing to double your money can be done safely over several years, but there's a greater risk of losing most or all your money when you're impatient.

How to double 10k quickly? ›

Number of years to double the money = 72 / Interest Rate

It is a reasonably accurate formula and more so while using lower interest rates than higher ones. If your money is kept in a savings account that earns just 4%, it will take 18 years to double your money.

The table below shows the present value (PV) of $5,000 in 20 years for interest rates from 2% to 30%. As you will see, the future value of $5,000 over 20 years can range from $7,429.74 to $950,248.19.

The time it takes to double a million dollars depends on the investment's annual growth rate. Using the Rule of 72 (72 divided by growth rate), it estimates the time. For instance, at a 7% annual return, it would take around 10 years to double to $2 million.

This rule is based on the principle of compounding interest and suggests that if you invest in a mutual fund with a 12 per cent annual return, your investment will double approximately every 8 years. After the first doubling, it will double again in the next 4 years, and then a final time in the subsequent 3 years.

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.

How Can I Double $1000? If your employer offers a dollar-for-dollar match contribution, you can double $1,000 by investing it in your 401(k). Other than that, there's no easy or risk-free way to double $1,000—you can invest the money in individual stocks, but there will be risks involved.

72 / 11.14 ≈ 6.5

An investment of $1,000 would take approximately 6.5 years to double.