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 Retiring in a Post-Pandemic World Imagine your ideal post-pandemic retirement with this animated video. When Should You Take Social Security Monthly Social Security payments differ substantially depending on when you start receiving benefits. Roth 401(k) vs. Traditional 401(k) This calculator compares employee contributions to a Roth 401(k) and a traditional 401(k).