Finance
Compound interest calculator
Start with a balance, choose how often it compounds, and add optional contributions. The result is future value, interest earned, and a yearly snapshot.
Results
Enter values to see results.
How this calculator works
Each compounding period the balance is multiplied by (1 + rate/n) and then the contribution for that period is added. Contributions are scaled so a monthly deposit still works with annual compounding. This is a period-by-period simulation, not a tax-aware forecast.
Illustration only. Markets, fees, taxes, and inflation are not included. Not investment advice.