Understanding Compound Interest
Compound interest is often called the "eighth wonder of the world," and for good reason. Unlike simple interest, which only earns returns on your initial investment, compound interest earns returns on both your principal AND your accumulated interest.
The Formula
The compound interest formula is: A = P(1 + r/n)^(nt)
Where:
A Real-World Example
Let's say you invest $10,000 at age 25 with a 7% annual return:
| Age | Investment Value |
|---|---|
| 25 | $10,000 |
| 35 | $19,672 |
| 45 | $38,697 |
| 55 | $76,123 |
| 65 | $149,745 |
That's nearly 15x your original investment without adding a single dollar!
The Cost of Waiting
If you wait just 10 years to start investing:
That 10-year delay costs you $73,622 in potential earnings.
Key Takeaways
Use our Compound Interest Calculator to see how your money can grow!