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 Why Millennials May Need Life Insurance Now More than Ever It’s easy to feel invincible when you’re young, healthy and have a steady paycheck. After all, the chances of something catastrophic happening to you are pretty low, right? Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. Be My Beneficiary Financial planning for couples.