How does compound interest generate wealth over long periods?

Compound interest is like having a piggy bank that grows smarter over time.

Imagine you have $100 in a piggy bank. If it earns simple interest, it might get $10 every year, just like getting 10 extra candies each day. But with compound interest, the piggy bank doesn’t stop there. It takes that $10 and adds it to the original $100, making it $110. The next year, it earns interest on that whole new amount, so you get more than just 10 candies, maybe 11 or even 12!

How it works over time

Think of compound interest like a snowball rolling downhill. At first, it’s small, but as it rolls, it picks up more snow, and gets bigger and faster.

If you leave your money in a bank that uses compound interest, every year (or even every month), your money grows just a little bit. But over years, like 10 or 20, those little bits add up to big changes. It’s like having a piggy bank that not only gives you candies but also teaches itself how to get more candies too!

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Examples

  1. A child saves $10 a month from age 6 to 18, growing into over $2,000 with compound interest.
  2. Putting $1 in a bank account that earns 5% interest every year turns into $1.05 after one year and more each year after that.
  3. If you earn 7% yearly on your savings, doubling your money every 10 years.

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