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Compound Interest Calculator

The eighth wonder of the world — see your money compound.

Future value
20,096.61
Interest earned
10,096.61
About this tool

Projects how an investment grows under compound interest with optional monthly contributions.

How to use
  1. 1Enter principal, rate, years and compounding frequency.
  2. 2Add a monthly contribution if any.
  3. 3See the final value and total interest.
Good to know

Educational projection only — not investment advice.