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Compound Interest Calculator

Small contributions. Bigger possibilities. See how your money could grow.

Your investment details

Explore the potential of consistency and time.

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years

Your numbers stay in your browser. Always.

YOUR RESULTS

Projected future balance

$54,713.58
Initial investment$10,000.00
Additional contributions$24,000.00
Interest earned$20,713.58
ContributionsInterest

Contributions are made at each month-end using an equivalent monthly growth rate. Constant returns are assumed; taxes, fees, and inflation are not included. Returns are not guaranteed.

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Behind the numbers

Compound interest earns returns on both your deposits and past interest. Your initial investment grows at the chosen compounding frequency; month-end contributions grow at an equivalent monthly rate.

Initial investment growth = P × (1 + r ÷ n)ⁿᵗ

P = initial investment · r = annual rate · n = compounds per year · t = years. Monthly contribution growth is added separately.