金融
複利計算機
複利期間ごとの複利成長を計算
使い方
- Enter your 初期投資額 (lump sum).
- Add a 月額積立額 if you plan to contribute regularly.
- Set the 年利 (e.g., 7% for stock market average).
- Choose the 期間 in years.
- Select how often interest is compounded (daily, monthly, annually).
計算式
A = P(1 + r/n)^(nt) + PMT × [(1 + r/n)^(nt) − 1] / (r/n)
A Future value (ending balance) P Principal (initial investment) r Annual interest rate (decimal) n Compounding frequency per year t Time in years PMT Regular payment (monthly contribution) Understanding how your investments grow over time is crucial for financial planning. Compound interest accelerates the growth of your savings by earning interest on both the initial principal and the accumulated interest from previous periods. Over long periods, this compounding effect can lead to exponential financial growth. For more information on the mathematics behind this, read about Compound Interest on Wikipedia.