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 Three Keys to a Great Password Have fun and learn how to craft the perfect password with the help of this highly engaging infographic. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. How Financial Decision-Making is Like Camping It takes a plan to be successful when you head into the wilderness. Your finances are no different.