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 Message Thank you! Oops! Related Content Taxable vs. Tax-Deferred Savings Use this calculator to compare the future value of investments with different tax consequences. Roth IRA for Kids Learn about the benefits and requirements of opening a Roth IRA for kids. Coaches Coaches have helped you your whole life, in ways big and small. We'd like to be one of them.