📈 Compound Interest Calculator
See the power of compound interest over time with regular contributions.
📖 The Magic of Compound Interest
Albert Einstein reportedly called compound interest "the eighth wonder of the world." The formula: A = P(1 + r/n)^(nt) + PMT × ((1+r/n)^(nt) - 1) / (r/n)
The key insight: your money earns returns, and those returns earn returns too. Time is the multiplier. Starting at 25 instead of 35 can mean hundreds of thousands more at retirement — not because you contributed more, but because compound interest had more time to work.