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! Free Guide: Will Tax Reform Impact You? The new tax laws in 2018 could bring significant changes to your tax strategy. Download our free ebook, "5 Things You Need to Know About Tax Reform." First Name Last Name Email Address Thank you! Oops! Related Contents The Power of Compound Interest Learn how to harness the power of compound interest for your investments. How Big is Money? Learn a little about worldwide currency in this fun infographic Your Cash Flow Statement A presentation about managing money: using it, saving it, and even getting credit.