Compound interest

Japanese: 複利 - ふくり
Compound interest

A method of calculating interest, as opposed to simple interest. When calculating interest, interest is added to the principal at regular intervals, and this is calculated successively as new principal. This method is sometimes called compound interest. Even if the interest rate is the same, the longer the period, the greater the interest due to compound interest will be than that due to simple interest. The formula for calculating compound interest is as follows:
Total principal and interest = principal x (1 + interest rate) periods .

[Yutaka Inoue]

[Reference] | Simple interest

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

利息の計算方法の一つで、単利に対するもの。利息計算の場合、一定期間ごとに利息を元金に付加し、これを新たな元金として逐次算出する方法で、まれに重利とよぶこともある。利率が同じでも、期間が長くなるほど、複利による利息のほうが単利によるものよりも大きくなる。複利の計算式を示すと、
  元利合計=元金×(1+利率)期間である。

[井上 裕]

[参照項目] | 単利

出典 小学館 日本大百科全書(ニッポニカ)日本大百科全書(ニッポニカ)について 情報 | 凡例

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