Compound Interest Calculator

Estimate compound growth with optional recurring contributions.

Enter a value for all required fields.

この計算機について

Estimate compound growth with optional recurring contributions.

How to use

  1. Enter the required values.
  2. Review the result instantly.

Formula

Future value grows by compound periods, with contributions added at the end of each period.

Example

1,000 at 5% for 1 year compounded yearly → 1,050.

FAQ

Are contributions added at the start or end of each period?

This calculator treats contributions as end-of-period payments.

Does monthly contribution work with yearly compounding?

Monthly is supported as a recurring input, but the calculation stays consistent with the selected compounding frequency.

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結果は参考情報です。重要な計算は必ずご自身で確認してください。