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 The Independence of Financial and Emotional Well-Being Greater financial and emotional confidence brings greater independence. Isn’t that what it’s all about? Understanding Marginal Income Tax Brackets An inside look at how marginal income tax brackets work. What's My Potential Estate Tax? This calculator helps estimate your federal estate tax liability.