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複利計算機

Project savings growth with contributions and compounding.

将来価値
$144,572.72
拠出額合計
$58,000.00
利息合計
$86,572.72
年ごとの成長
年拠出額利息残高
1$12,400$801$13,201
2$14,800$1,834$16,634
3$17,200$3,115$20,315
4$19,600$4,662$24,262
5$22,000$6,495$28,495
6$24,400$8,633$33,033
7$26,800$11,100$37,900
8$29,200$13,918$43,118
9$31,600$17,114$48,714
10$34,000$20,714$54,714
11$36,400$24,747$61,147
12$38,800$29,246$68,046
13$41,200$34,244$75,444
14$43,600$39,776$83,376
15$46,000$45,882$91,882
16$48,400$52,603$101,003
17$50,800$59,983$110,783
18$53,200$68,070$121,270
19$55,600$76,915$132,515
20$58,000$86,573$144,573

すべての計算はブラウザで私的に実行されます。入力した内容がアップロードされたり保存されたりすることはありません。

複利計算機について

この複利計算機は、初期元本、月々の定期的な拠出、年利、選択した複利計算頻度から、貯蓄または投資が時間とともにどのように成長するかを予測します。将来価値、自分の拠出と獲得した利息の比較、成長の年別テーブルを表示します。拠出と利息を並べて見ると、複利の力が明らかになります。すべてがブラウザ内でローカルに計算されます。

複利計算機の機能

  • 01

    Contributions and compounding

    Model a lump sum plus recurring monthly deposits, and choose annual, semi-annual, quarterly, monthly, or daily compounding.

  • 02

    Contributions vs. interest

    The results separate the money you put in from the interest it earned, so you can see exactly how much compounding added.

  • 03

    年別成長テーブル

    A yearly schedule shows the balance, total contributions, and total interest at the end of each year of your projection.

複利計算機のよくある質問

What is compound interest?
Compound interest is interest earned on both your original principal and the interest already added. Over time this snowball effect makes balances grow faster than simple interest.
How does compounding frequency affect growth?
The more often interest compounds — daily rather than annually, for example — the slightly higher the final balance, because interest starts earning interest sooner. This calculator lets you compare frequencies instantly.
How do monthly contributions change the result?
Regular deposits are added to the balance each month and then compound along with everything else, so consistent contributions often make a bigger difference than a higher rate over the long run.
What is future value?
Future value is what your investment will be worth at the end of the period, including principal, all contributions, and all compounded interest. It's the headline number this calculator returns.
Are these projections guaranteed?
No. They assume a fixed rate and steady contributions; real investment returns vary year to year. Use it as a planning estimate. All calculations run privately in your browser.

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