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 Question Thank you! Oops! Related Content Medicare Advantage 101 Overview of Medicare Advantage, what’s in them, special rules, and more. Stop Wasting Money One way to find money is to examine your current spending habits and eliminate money wasters. Retirement Traps to Avoid Beware of these traps that could upend your retirement.