Compound Interest Calculator

Calculates compound interest, compounded annually. Enter "<principal> at <rate>% for <years> years".

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Calculates compound interest, compounded annually. Enter " at % for years".

Use cases

  • Projecting how a savings account or investment grows over time
  • Comparing compound growth against a simple interest offer

Examples

$1000 at 5% for 10 years

1000 at 5% for 10 years
{"final_amount": 1628.89, "interest_earned": 628.89}

FAQ

Is my data sent to a server?

Yes — the calculation runs on the server for this tool.