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 What Is My Life Expectancy? Estimate how many years you may need retirement assets or how long to provide income to a surviving spouse or children. How Compound Interest Works Use this calculator to better see the potential impact of compound interest on an asset. Emotional vs. Strategic Decisions Information vs. instinct. Are your choices based on evidence of emotion?