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 Silver Sneakers 101 Medicare’s popular program, offering free gym membership and health education. A Taxing Story: Capital Gains and Losses Understanding how capital gains are taxed may help you refine your investment strategies. How Women Can Prepare For Retirement Are women prepared for a 20-year retirement?