Compound Interest Calculator

Project savings or investment growth with compound interest over time.

Compound Interest Calculator calculator

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How To Use

  1. Enter your initial investment or savings amount.
  2. Enter the expected annual interest rate and number of years.
  3. Optionally add a regular monthly contribution.
  4. Choose how often interest compounds (e.g., monthly or annually).
  5. Review the future value and total interest earned.

What Is Compound Interest?

Compound interest is interest earned on both your initial principal and on interest already earned. Over time, that compounding grows your balance faster than simple interest. This calculator shows how much a lump sum and/or regular contributions can grow at a given rate and compounding frequency—useful for savings accounts, investments, and retirement planning.

Frequently Asked Questions