Compound Interest Calculator

What is Compound Interest?

Compound interest is the interest on interest. It is the result of reinvesting interest, rather than paying it out, so that interest in the next period is then earned on the principal sum plus previously accumulated interest.

How to use this calculator?

• Initial Investment: The money you start with.
• Monthly Contribution: How much you can save and invest each month.
• Duration: How many years you plan to keep the investment.
• Annual Interest: The average return you expect (stock market historically returns 7-10% inflation-adjusted).