Compound Interest
Enter a starting amount, pick compounding and contribution settings, and compare nominal vs inflation-adjusted (real) results. Toggle APR/APY.
Future Value (Nominal)
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Future Value (Real)
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Adjusted for inflation
Total Contributed
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Mini chart: Nominal (solid) vs Real (dashed).
Show yearly schedule
| Year | End Balance (Nominal) | End Balance (Real) | Interest Earned | Contrib This Year | Total Contrib |
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Help & FAQ — Compound Interest Calculator
How to use
- Enter the initial amount, contribution schedule, and interest rate.
- Choose compounding frequency and duration.
- Review growth charts and tables for future value and total interest.
Use cases
- Project savings growth over several years.
- Compare different contribution scenarios.
Tips & FAQs
- Can I model withdrawals?
- Set contributions to a negative value to simulate withdrawals.
- Does it include taxes or fees?
- No—factor those manually as they vary by jurisdiction.
Formats & limits
- Inputs support yearly terms up to 50 years
- Uses standard compound interest formulas
- Results are estimates; actual returns vary
Privacy
Calculations run locally in your browser; no financial data leaves your device.
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Updated
15 October 2025