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. Share | Related Content Bridging the Confidence Gap In the world of finance, the effects of the "confidence gap" can be especially apparent. 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. 5 Smart Investing Principles Principles that can help create a portfolio designed to pursue investment goals.