Investment Growth & Compound Interest
Visualize exponential growth and see how money makes money.
Total Invested
$53,000
Interest Earned
+$71,987
Final Balance
$124,987
How it works
Compound interest is the interest you earn on your initial investment plus the interest you've already accumulated. Over long periods, this creates a "hockey stick" curve where growth accelerates year after year.
Principal
The initial amount of money you invest.
Annual Contribution
Regular additions that fuel the compounding engine.
The Math Behind It
The standard formula for compound interest including monthly contributions:
Where A is the final amount, P is the principal, r is the rate, and t is the time in years.
New to Finance?
We wrote a deep-dive guide on how money grows over time. Learn why Alex beats Sam even though Sam invested more.