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Compound Interest Calculator

See how your money can grow over time with the power of compound interest.

Inputs

Total Principal
$0
Total Interest
+$0
Expected Value
$0

Growth Over Time

Understanding Compound Interest

Compound interest is often called the "eighth wonder of the world". It is the interest on a loan or deposit calculated based on both the initial principal and the accumulated interest from previous periods.

How to use this calculator

  1. Initial Investment: The amount of money you start with.
  2. Monthly Contribution: How much you plan to add to your investment each month.
  3. Interest Rate: The annual estimated return on your investment.
  4. Duration: How many years you plan to let the money grow.

Use the "Load Example" button to see a demonstration of how a regular $500 monthly investment can grow over 20 years.