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 The Why, What and How of Life Insurance The Why, What and How of Life Insurance How Big is Money? Learn a little about worldwide currency in this fun infographic Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns.