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The Power of Compound Interest

Drag the sliders to see how your starting amount, time in the market, return, and monthly contributions change your long‑term results.

See how growth accelerates over time

Compound interest means you earn returns not just on what you put in, but also on the growth that’s already there. Over long periods, this creates a curve that bends upward—especially when you combine time with steady monthly contributions.

Initial investment
Annual return
Years
Monthly contributions
Final balance
Total invested
Interest earned

Growth of your money over time

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