Compound Interest Calculator
Calculate how your investments grow over time with compound interest. See the power of compounding on your savings.
入力
計算に必要な値を入力してください
結果
計算結果を表示
What is a Compound Interest Calculator?
A Compound Interest Calculator shows how your money grows when interest is earned not just on your initial investment, but also on the interest that accumulates over time. This 'interest on interest' effect is the foundation of long-term wealth building and why starting to invest early makes such a dramatic difference.
使用方法
Enter your initial investment amount, expected annual interest rate (historical stock market average is about 10%, conservative estimate is 6-7%), the number of years you plan to invest, and how often interest compounds (monthly is most common). The calculator shows your future value, total interest earned, and growth percentage.