Commissions do not affect our editors' opinions or evaluations. Simply put, compound interest is interest earned on interest. It’s a powerful tool to maximize your savings, and there are several ...

An illustration of a magnifying glass. An illustration of a magnifying glass.

Compound interest is a basic concept of finance that plays a major role in long-term financial decisions. It refers to earning interest on the principal amount as well as the interest earned in ...

Estimate your monthly student loan payments and the total amount you'll pay, including interest. Many, or all, of the products featured on this page are from our advertising partners who ...