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 Should You Borrow from Your 401(k)? Does it make sense to borrow from my 401(k) to pay off debt or to make a major purchase? How to Read Your Credit Report Solve a mystery while learning how important your credit report is with this story-driven interactive. Insurance Needs Assessment: When You're Newly Married Marriage changes everything, including your insurance needs.