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 Your Paycheck and You: A Love Story Are you showing your paycheck the love it deserves? Saving for Retirement This calculator can help you estimate how much you may need to save for retirement. Who's On Your Financial Dream Team? On a team, all players count, but some key positions are more critical to success.