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 The Power of Tax-Deferred Growth Why are 401(k) plans, annuities, and IRAs so popular? A Bucket Plan to Go with Your Bucket List Longer, healthier living can put greater stress on retirement assets; the bucket approach may be one answer. Retirement Plan Distributions There are a number of ways to withdraw money from a qualified retirement plan.