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 Rule of 72 Do you know how long it may take for your investments to double in value? The Rule of 72 is a quick way to figure it out. The Other Sure Thing Though we don't like to think about it, all of us will make an exit sometime. Are you prepared? Inflation & Your Money It's important to understand how inflation is reported and how it can affect investments.