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? Address Thank you! Oops! Related Contents The Cost of Procrastination Procrastination can be costly. When you get a late start, it may be difficult to make up for lost time. Pay Yourself First It sounds simple, but paying yourself first can really pay off. Historical Inflation This calculator shows how inflation over the years has impacted purchasing power.