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 Half Million Dollar Baby The true cost of raising a child may be far more than you expect. Historical Inflation This calculator shows how inflation over the years has impacted purchasing power.