Doubling Your Money This calculator demonstrates the power of compound interest. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Contents No Cash, No Checks, No Problem Peer-to-peer payment apps are one of the newest ways to send money. The Five Basics of Financial Literacy How literate are you when it comes to your finances? Brush up with these five basics. Surprise! You’ve Got Money! Here’s a quick guide to checking to see if you have unclaimed money.