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 Financial Hacks for Millennials: Student-Debt Here are seven ways to reduce that debt and live more confidently. Buying Auto Insurance For Teen Drivers Tips on insuring your teen driver. Qualifying For Medicare Under Age 65 You might qualify for Medicare if you’re under 65-years-old. This article will explain the conditions where you may qualify for Medicare early.