Compound Interest Calculator
Calculate how your money grows over time with compound interest
Disclaimer
This calculator is for educational purposes only. Results are estimates based on your inputs. Consult a qualified financial advisor for personalized advice. Read full disclaimer
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Compound Interest Formula
Calculate the future value of an investment with compound interest
Where:
Future value of the investment
Principal (initial investment)
Annual interest rate (as a decimal)
Number of times interest is compounded per year
Time period in years
Example:
With $10,000 invested at 7% compounded monthly for 10 years, the future value would be approximately $20,096.61
How Compound Interest Works
Compound interest is the interest calculated on both the initial principal and the accumulated interest from previous periods. This creates a snowball effect where your money grows exponentially over time, making it one of the most powerful concepts in personal finance. The more frequently interest compounds (daily vs. monthly vs. annually), the more you earn.
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