My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates. 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 Are You Prepared for an Estate Tax Sunset? The federal estate tax exemption sunsets in 2025. Learn more about what to do to make the most of the higher threshold. Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. Taxable vs. Tax-Deferred Savings Use this calculator to compare the future value of investments with different tax consequences.