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. Share | Have A Question About This Topic? Name Email Address Question Thank you! Oops! Related Content Conquering Retirement Challenges for Women Looking ahead can help you conquer these unique obstacles. The Pros and Cons of Banking Your Money The Pros and Cons of Banking Your Money Infographic: 2019 Taxes by the Numbers Here are the official tax numbers for 2019.