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 18 Years’ Worth of Days The average retirement lasts for 18 years, with many lasting even longer. Will you fill your post-retirement days with purpose? A Look at Whole Life Insurance Whole life insurance remains in force as long as you remain current with premiums. Here's how it works. The Other Sure Thing Though we don't like to think about it, all of us will make an exit sometime. Are you prepared?