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 How Big is Money? Learn a little about worldwide currency in this fun infographic A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals. Countdown to College Preparing for college means setting goals, staying focused, and tackling a few key milestones along the way.