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 Helpful Retirement Strategies for Women Learn how to address the challenges that women face when planning for retirement. Infographic: Risks at Retirement Make a plan to take these risks off the table. A Look at Diversification Diversification is an investment principle designed to manage risk, but it can't prevent against a loss.