📈 Compound Interest Calculator
A compound interest calculator shows how money grows when interest is earned on both your original deposit and the accumulated interest. Enter a principal, interest rate, compounding frequency, and time horizon to see the power of compounding — the "eighth wonder of the world."
Investment details
Future value after 20 years
$144,572.72
Assumes 7% annual return, compounded monthly
Total deposited
$58,000.00
Interest earned
$86,572.72
Growth multiple
2.49×
Growth over time — deposits vs interest earned
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Frequently asked questions
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Disclaimer: This calculator is for informational and educational purposes only. Results are estimates and not financial advice. Consult a licensed financial advisor before making financial decisions.