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 When Do You Need a Will? When do you need a will? The answer is easy: Right Now. Why Regular Rebalancing Makes Sense Without your knowing, your investment portfolio could be off-kilter. Saving Early & Letting Time Work For You The earlier you start pursuing financial goals, the better your outcome may be.