How Compound Interest Works Use this calculator to better see the potential impact of compound interest on an asset. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content The Anatomy of an Index The S&P 500 represents a large portion of the value of the U.S. equity market, it may be worth understanding. Saving for Retirement This calculator can help you estimate how much you may need to save for retirement. Finding the Balance The sandwich generation faces unique challenges. For many, meeting needs is a matter of finding a balance.