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 Message Thank you! Oops! Related Content What's New for Social Security? There have been a number of changes to Social Security that may affect you, especially if you are nearing retirement. What Is My Risk Tolerance? This questionnaire will help determine your tolerance for investment risk. Impact of Taxes and Inflation Estimate the potential impact taxes and inflation can have on the purchasing power of an investment.