Calculator

Compound Interest Calculator

Project how a starting balance and monthly contributions grow over time.

Values update as you type. Nothing is sent anywhere.

Final balance

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Total contributed—
Interest earned—

How to use this calculator

Compound interest pays interest on your interest. Small contributions made early outperform large contributions made late — that is why starting in your twenties matters even if the amounts feel small.

This calculator is provided for educational purposes only. Results are estimates and do not account for taxes, fees, or jurisdiction-specific rules. Consult a licensed professional before making financial decisions.

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