Compound Interest Calculator
Watch your money grow over time. The eighth wonder of the world, quantified.
Compound Interest Calculator
The Compound Interest Calculator is the foundation stone of the investing suite, giving users a live view of how money grows when reinvested returns earn returns of their own. Enter a starting amount, a monthly contribution, an expected annual return, and a time horizon, and the calculator separates your total balance into two layers: what you actually contributed versus what compounding earned on top. A compounding frequency selector (annual, quarterly, monthly, or daily) lets users see how more frequent compounding nudges the final number upward. The chart shows contributions and total balance side by side over time, making the widening gap between the two lines impossible to miss. It answers the question every early investor eventually asks: is it worth starting now with a small amount, and how much does waiting actually cost me?