複利計算ツール
複利の力を体感できます。初期預金、毎月の積立額、年間利回り、投資期間を設定してください。
Final balance—
Total contributions—
Total interest earned—
Multiplier—
Growth chart
Contributions
Interest
機能
Initial principal + recurring contributions
Annual / semi-annual / quarterly / monthly / daily compounding
Year-by-year breakdown
Visual growth chart
Total contribution vs interest earned
使い方
1. 初期元金と毎月の積立額を入力します。
2. 想定年間利回りを設定します。
3. 投資期間と複利計算頻度を選択します。
4. チャートに元金と利息の年ごとの積み上がりが表示されます。
5. 「表を表示」をクリックして年別の詳細を確認できます。
よくある質問
What is compound interest?
Compound interest is interest calculated on both your initial principal and the accumulated interest from previous periods. Over time, this 'interest on interest' effect can dramatically grow your savings.
How realistic is the projected growth?
The math is exact, but the assumed annual return is up to you. Historical stock market average is roughly 7% real return per year, but actual results vary.