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Compound Interest Calculator

See how your investment grows with compound interest and regular contributions

Compounding: Monthly

Final Amount

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Total value at end of period

Total Contributions

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Principal + all contributions

Total Interest Earned

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Growth from compound interest

Principal--
Total Contributions Added--
Interest as % of Final--
Effective Annual Rate--

Growth Visualization

Year-by-Year Breakdown

Year Contributions Interest Balance

Compound Effect

The more frequently interest compounds, the faster your money grows. Daily compounding yields slightly more than annual compounding.

Regular Contributions

Adding monthly contributions dramatically increases your final balance through dollar-cost averaging and compounding.

Privacy

All calculations are done locally in your browser. No data is uploaded anywhere.