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 Understanding the Basics of Medigap Policies Important as it is, Medicare does not cover the full range of health-care expenses you may experience in your golden years. Paying Off a Credit Card Enter various payment options and determine how long it may take to pay off a credit card. Estimate Your RMD Help determine the required minimum distribution from an IRA or other qualified retirement plan.