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What is Compound Interest? A Simple Explanation for Kids, Teens and Beginners


Introduction to Compound Interest for Kids and Teens

This video explains the concept of compound interest in a simple, concise way for kids and beginners. It could be used by kids & teens to learn about compounding, or used as a money & personal finance resource by parents and teachers as part of a Financial Literacy course or K-12 curriculum.

What is Compound Interest - A Simple Explanation for Kids Teens and Beginners
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Suitable for students from grade levels:

  • Kindergarten
  • Elementary School
  • Middle School
  • High School

The topics covered are:


What is Compound Interest? A Simple Explanation for Kids, Teens and Beginners | What is Compound Interest Infographic
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Infographic: Click Here to Download a High-Quality Printable Version


Howdy Wall Street Willy. I have a really big question for you.

What is compound interest?

Compound interest is interest on interest.

What do you mean by interest on interest?

Compound Interest for Kids Teens and Beginners - And the Power of Compounding
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If you have $100 in the bank and has 10% rate of interest, on the first year, it’ll be $10 in interest because 10% of $100 is $10. But in the second year, the interest will be $11 because the interest for a $100 is $10, and for the extra $10 is another $1. So the total is $11 for the second year, but only $10 for the first year.

Well, but why is that even important? It’s just interest on interest on interest. Who cares?

Well, it shows that the longer you invest your money for, the quicker your money grows and its growth gets accelerated. And you can make a lot of money with compound interest.

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An Example of the Power of Compounding

Well then, I really like compound interest. But could you give me a long term example?

Okay. If there’s $100 at a 10% rate of interest, in 10 years it’ll turn into $259. In 20 years, I’ll turn into $673. In 30 years, it’ll turn into $1,745. In 40 years, it’ll turn into $4,526. And in 50 years, it’ll turn into $11,739!!

Compound Interest for Kids Teens and Beginners - A Simple Explanation
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$100 at a 10% rate of interest

  • 10 years: $259
  • 20 years: $673
  • 30 years: $1,745
  • 40 years: $4,526
  • 50 years: $11,739

Whoa! That’s so awesome! A $100 at a 10% rate of interest can turn into $11,739. That’s so awesome!!

Yes, it is very awesome. That is why compound interest is very important.

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Does my bank account give compound interest?

If you leave the interest that you got in your bank account, then yes, you would receive compound interest.

Power of Compounding for Kids Teens and Beginners - Compound Interest
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That’s great! But does my piggy bank give compound interest?

No, it does not even give interest – unless your parents secretly sneak money into it!

Thank you very much for teaching me about compound interest, Wall Street Willy.

You’re welcome. Remember, finance is your friend!


Video Featured in the Below Financial Literacy Course for Kids & Teens


Download Transcript: Ideal for Use by Teachers in their Lesson Plan to Teach Kids & Teens


Podcast: What is Compound Interest?

Compound Interest
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