Compound Interest Calculator

Calculate how your investment grows over time with compound interest. Choose your compounding frequency and see the power of long-term growth.

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Final Amount
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Interest Earned
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Principal
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Return Rate
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Disclaimer: Results are for informational and educational purposes only. Consult a qualified professional before making financial, medical, or construction decisions.

How Compound Interest Works

Compound interest is calculated using the formula A = P(1 + r/n)^(nt), where A is the final amount, P is the principal, r is the annual rate, n is the number of compounding periods per year, and t is the time in years.

Example

$10,000 invested at 5% compounded monthly for 10 years grows to $16,470.09 — that's $6,470.09 in interest earned purely through compounding.

The Power of Time