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 Long-Term-Care Needs Determine your potential long-term care needs and how long your current assets might last. Insurance Needs Assessment: When You're Newly Married Marriage changes everything, including your insurance needs. Choosing a Retirement Plan that Fits Your Business To choose a plan, it’s important to ask yourself four key questions.