Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Estate Management 101 A will may be only one of the documents you need—and one factor to consider—when it comes to managing your estate. The Rule of 72 Do you know how long it may take for your investments to double in value? The Rule of 72 is a quick way to figure it out. A Penny Saved is Two Pennies Earned Here are some simple and inexpensive energy-saving tips that may help you save money.