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 Your DNA Test Preparing for the unexpected can make all the difference if your family relies on your income. Should You Tap Retirement Savings to Fund College? There are three things to consider before dipping into retirement savings to pay for college. From Boats to Brokers From the Dutch East India Company to Wall Street, the stock market has a long and storied history.