Compound interest is why small, early savings can matter more than large, late ones.
Direct answer
Compound interest means you earn interest on your original money and on the interest it has already earned. Over time the growth speeds up. The formula is A = P(1 + r/n)^(nt). Starting early and staying invested are the two biggest levers.
A simple example
Suppose you save 1,000 at 5 percent a year, compounded annually.
- After 1 year: 1,050
- After 2 years: 1,102.50
- After 10 years: about 1,629
- After 30 years: about 4,322
Simple interest would give only 2,500 after 30 years. The extra comes from compounding.
What makes it work
- Time: the longer, the better.
- Regular contributions: adding money keeps feeding the snowball.
- Rate: higher rates compound faster, with more risk for investments.
- Not withdrawing: taking money out interrupts the effect.
It works against you too
Debt compounds as well. Credit card interest can grow quickly if left unpaid.
Where Teyro fits
Teyro's Money Habits That Build Long-Term Wealth course turns this into short lessons you can play in a few minutes a day. It has 50 lessons, and you can start free.
The bottom line
Start early, add regularly and let time do the heavy lifting. Returns on investments are not guaranteed.
This is general education, not personal financial advice.
