Compound Interest Calculator
Use the Compound Interest Calculator
Project recurring contributions, compounding, and future value over a multi-year horizon.
- Investment growth projections
- Recurring saving plans
- Future-value visibility
Use a realistic nominal return, contribution amount and timing, compounding frequency, and investment horizon; rerun conservative return scenarios before setting a savings commitment.
What this calculator covers
Inputs you can model
- Initial amount
- Recurring contribution
- Contribution frequency
- Annual return rate %
- Years to grow
- Compounding periods per year
Results you can review
- Future value
- Total contributions
- Total interest earned
- Growth schedule
Method, policy basis, and limitations
How the estimate is built
The model compounds the entered annual return at the selected frequency and adds recurring contributions according to the chosen timing to produce yearly balances.
Important limitation
This is a mathematical projection, not an investment forecast. Returns are not guaranteed, and taxes, fees, inflation, market volatility, contribution limits, and losses may reduce actual value.
Your inputs
Enter the values you know. Required fields should be completed first, and optional fields can be left blank if they do not apply to your situation.
Run the calculator to see the planning signal, key measures, reconciliation detail, and any schedules or stress scenarios returned for these inputs.
Your results
The top cards show the most important answers first. Detailed schedules, scenario tables, and supporting notes appear underneath for deeper review.
Inputs changed. Run the calculator again to refresh these results; copy, print, PDF, and Excel actions are unavailable until then.
This is a mathematical projection, not an investment forecast. Returns are not guaranteed, and taxes, fees, inflation, market volatility, contribution limits, and losses may reduce actual value.