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 Surprise! You’ve Got Money! Here’s a quick guide to checking to see if you have unclaimed money. U.S. Personal Savings Rate What can be learned from the savings rate? Your Cash Flow Statement A presentation about managing money: using it, saving it, and even getting credit.