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. Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Historical Inflation This calculator shows how inflation over the years has impacted purchasing power. Understanding Marginal Income Tax Brackets An inside look at how marginal income tax brackets work. Pullbacks, Corrections, and Bear Markets When the market experiences volatility, it may be a good time to review these common terms.