How Compound Interest Works Use this calculator to better see the potential impact of compound interest on an asset. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Related Content Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. Problems with Probate Probate can be a completely public process, or it can be managed to include as little information as possible. What Is My Life Expectancy? Estimate how many years you may need retirement assets or how long to provide income to a surviving spouse or children.