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 Question Thank you! Oops! Related Content Inflation & Your Money It's important to understand how inflation is reported and how it can affect investments. Retirement Seen Through Your Eyes What's your vision of retirement? Where Will Your Retirement Money Come From? Retirement income may come from a variety of sources. Here's an overview of the six main sources.