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 What Smart Investors Know Savvy investors take the time to separate emotion from fact. An Overview of Renter’s Insurance Don’t overlook the need for renter’s insurance if you rent your home. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one.