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 What Can a Million Dollars Buy You? $1 million in a diversified portfolio could help finance part of your retirement. Travel, Without the Baggage Tips to avoid checking in luggage on your next vacation. When Should You Take Social Security Monthly Social Security payments differ substantially depending on when you start receiving benefits.