See How Your Money Compounds
Most people underestimate how powerful consistent investing can be. Not because the math is complicated. But because it’s hard to visualize what happens over time.
This simple investment calculator lets you simulate how your portfolio could grow based on a few key inputs: your starting amount, monthly contributions, expected return (APY), and time horizon.
Adjust the numbers below and watch how small changes can lead to dramatically different outcomes. That’s compounding quietly doing its job.
How This Investment Calculator Works
The chart models compound growth using your inputs. Each month, your portfolio increases based on your expected annual return, divided into a monthly rate. If reinvestment is enabled, your gains are added back into the portfolio, allowing future returns to build on past growth.
Over time, this creates a curve that starts slow… then quietly accelerates.