Compound Interest Calculator
Watch your money grow over time! Play with the numbers and see the magic of compound interest.
Adjust Your Numbers
$100
$0$10,000+
$50
$0$1,000+
%
1%15%+
years
1 year50+ years
Total You Contributed
$0
Interest Earned
$0
Final Amount
$0
Growth Over Time
💡 Key Insights
•Your money grew by NaN% through compound interest!
•Interest earned represents NaN% of your final amount.
What is Compound Interest?
Compound interest is when you earn interest on both your original money and the interest you've already earned. It's like a snowball rolling downhill—it starts small but grows faster and faster!
Example:
If you invest $100 at 10% interest:
Year 1: $100 × 1.10 = $110
Year 2: $110 × 1.10 = $121 (you earned interest on the $10 too!)
Year 3: $121 × 1.10 = $133.10
The earlier you start, the more time your money has to grow. Even small amounts can become significant over time!