Skip to main content

The popular Rule of 72 explained

The Rule of 72 is a simple way to estimate how long it will take for money to double at a given interest rate. To use the rule, divide 72 by the interest rate. The result is the number of years it will take for your money to double. For example, if you invest money at a 6% interest rate, it will take about 12 years to double (72 / 6 = 12).

The Rule of 72 is a quick and easy way to get a general idea of how long it will take for your money to grow. However, it is important to note that it is just an estimate. The actual time it takes for your money to double may be longer or shorter than the number of years you get using the Rule of 72. This is because the Rule of 72 does not take into account compounding, which is when you earn interest on your interest.

If you want to get a more accurate estimate of how long it will take for your money to double, you can use a compound interest calculator. A compound interest calculator will take into account the interest rate, the number of years you plan to invest, and whether you make regular deposits.

The Rule of 72 is a helpful tool for anyone who wants to start thinking about their financial future. It can help you to set realistic goals and to make sure that you are saving enough money to reach those goals.

Here are some tips for using the Rule of 72:

  • Start saving early. The earlier you start saving, the more time your money has to grow.

  • Invest your money in a diversified portfolio. This will help to protect your money from market volatility.

  • Reinvest your earnings. This will help your money to grow even faster.

  • Don't touch your savings. The longer you leave your money alone, the more it will grow.

The Rule of 72 is a simple tool, but it can be a powerful one. Use it to help you reach your financial goals.


Comments

Check out what's been popular!

A sample budget with Jenny

Jenny doesn't have much to her name. She just graduated from college with a film degree, into an economy where the film industry isn't doing well, so she can't find work doing what she loves to do. She lives in an apartment with a roommate, her best friend Jill, from film school. Jill is in the same predicament, but we'll only look at Jenny's finances since they're the same. Because she can't find work in her field, she instead manages a sandwich shop.  She currently has:  a car loan with $10,000 remaining, to be paid over the next 4 years at 6% interest $30,200 in Federal student loans, to be paid over the next 10 years at 3.65% interest $2,000 in a high-yield savings account earning 4.5% annually no investments  Here's the breakdown of her income and expenses: Gross Income per month $3,333.33 Student Loans $300.00 Taxes $776.00 $9,312.00 Takehome Incom...