The FI Projection Compound Interest Calculator was designed to be easy to input data on your laptop or mobile device, and features a live-updating chart to help you visualize your investment growing over time.

The chart and the "Show details" toggle allow you to see a year-by-year breakdown of your Investment, Interest, and Contributions along with your Goal.

How It Works

1. Input your Investment Data: Enter your initial investment, time (in years), Interest Rate (%) (growth percent), contributions per year, contributions change per year (plus or minus), and a goal amount.
2. Live Graph Updates: The graph updates dynamically in real-time as you adjust values, showing your projected growth.
3. Yearly Growth Table: Click "Show Details" to see a detailed table below the graph that provides a yearly breakdown of your total Investment balance, Interest Gained, and Contributions lined up against your goal.
4. Interactive Controls:
   • Hover over any data point in the graph to see exact values.
   • Toggle investment lines (e.g., Amount, Interest, Contributions, Goal) on or off in the Chart legend for a clearer view.

This tool makes it easy to project an investment with Compount Interest, and also can help you understand how compound interest can work for your money, and you! Small adjustments to contributions over a long time can impact your long-term financial growth in a really amazing way. It's math! 🚀