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 Dreaming Up an Active Retirement When you retire, how will you treat your next chapter? Social Security: Maximizing Benefits There are other ways to maximize Social Security benefits, in addition to waiting to claim them. Roth 401(k) vs. Traditional 401(k) This calculator compares employee contributions to a Roth 401(k) and a traditional 401(k).