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 Redefining Retirement Planning Millennials are redefining retirement planning. Managing the Risk of Outliving Your Money Steps to help you sustain and grow your retirement savings. Is it Too Late to Plan for Retirement? These financial strategies can get you on track even if it feels too late to plan for retirement.