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. Share | Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Tuning Your Social Security Benefit When should you take your Social Security benefit? Thanks Mom It turns out Mom really did know best when she laid down essential truths to live by. Retirement Plan Distributions There are a number of ways to withdraw money from a qualified retirement plan.