Compound interest calculator

Estimate how money grows with monthly contributions and compounding interest.

Project savings month by month for any annual rate.

So verwenden Sie dieses Werkzeug

  1. Enter the initial balance.
  2. Set the monthly contribution.
  3. Type the annual rate as a percent.
  4. Pick the duration in months and read the projection.

Typische Anwendungsfälle

  • Planning a 12-month savings goal.
  • Comparing two investment scenarios.

Grenzen und Hinweise

  • Does not deduct fees or taxes.
  • Educational only; not financial advice.

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This calculator compounds your balance monthly using an annual rate, then adds your contribution at the end of every month. Helpful for emergency fund planning, education savings and back-of-envelope investment math.