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 Message Thank you! Oops! Related Contents The Power of Compound Interest Learn how to harness the power of compound interest for your investments. Budget Check Up: Tax Time Is the Right Time Tax preparation may be the perfect time to give the household budget a check-up. Your Cash Flow Statement A presentation about managing money: using it, saving it, and even getting credit.