The Online Investing AI Blog

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If you make, invest, and spend wisely, we suspect you’ll make a lot of money. And, if you continue to reinvest this money.

It’s going to continue to grow.

And that amount can be pretty dramatic. That’s what we revealed in yesterday’s post on yesterday’s post on the Eighth Wonder of the World: Compound Interest. If you use this power of compounding, the possibility of your investment doubling (and more) increases.

But, you may want to know exactly how much it is going to grow. To estimate that figure easily, all you need to do is master the secret of 72.

If  you have invested a certain amount of money at a certain interest rate and would like to know how long it will take to double, you just use the secret number and plug it into the following equation:

Take 72 divided by your interest or return rate and that equalls the number of years (or months or days!) it will take to double.

Let’s take a look at it in action.

So, let’s say you have a return of three percent, by using Investing’s Secret Number, it would take you 24 years to double your money. Check it out:

3 divided by 72 = 24 years

Then…

4 divided by 72 = 18 years

5 divided by 72 = 14.4 years

6 divided by 72 = 12 years

7 divided by 72 = 10.29 years

8 divided by 72 = 9 years

9 divided by 72 = 8 years

10 divided by 72 = 7. 2 years

The rule of 72 is a handy trick for determining whether your on track to meet your financial goals.

Related posts:

1. Exploring The Mysteries Of Investing
2. Myth: Your Tax Return Is Free Money
3. When The Strict Get Stricter, The Rich Get Richer
4. The Secret Of The Wealth Singularity
5. Exponential Wealth: The More And More Law

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