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 What's My 2023 Tax Bracket? Check out this handy reference of updated ranges from the IRS in case your designated bracket has changed. 401(k) Plans Are Not Just for Big Businesses Many small businesses are one person businesses. The Importance of Business Valuation You know your company inside and out. But do you know how much it’s actually worth on the open market?