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Compound Interest Calculator

See how a lump sum grows with compounding over time.

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Rex says

Money math without the spreadsheet headache. Plug in your numbers and I'll show you exactly where the dollars land.

Try a scenario

Click to load — tweak from there.

Inputs

Result

Future value

$18,194

Interest earned

$8,194

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One click, a permanent link with your numbers baked in.

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How to use this

  1. 1Enter starting amount ($).
  2. 2Enter annual rate (%).
  3. 3Enter years (years).
  4. 4Enter compounding.
  5. 5Read your future value on the right — it updates as you type.
  6. 6Hit Share to keep the scenario or send it to someone.

About this calculator

Project the future value of a starting balance compounded at a chosen frequency.

FormulaFV = P × (1 + r/n)^(n·t)

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