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 Saving for College 101 Here’s a crash course on saving for college. Pay Yourself First It sounds simple, but paying yourself first can really pay off. Your Cash Flow Statement A presentation about managing money: using it, saving it, and even getting credit.