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 Questions to Consider When Buying a Vacation Home Doing your research is key before buying a vacation home. Comparing Investments This calculator compares the net gain of a taxable investment versus a tax-favored one. Long-Term-Care Needs Determine your potential long-term care needs and how long your current assets might last.