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 Starting a Roth IRA for a Teen This early financial decision could prove helpful over time. When Does Your Personal Car Become a Commercial Vehicle? At what point can you call a personal vehicle commercial? The Facts About Income Tax Millions faithfully file their 1040 forms each April. But some things about federal income taxes may surprise you.