Finance Calc Lab
Investment

Compound Interest Calculator

Calculate how your money grows over time with compound interest

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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

A=P(1+rn)ntA = P \left(1 + \frac{r}{n}\right)^{nt}

Where:

AA

Future value of the investment

PP

Principal (initial investment)

rr

Annual interest rate (as a decimal)

nn

Number of times interest is compounded per year

tt

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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