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 Choosing a Mortgage Selecting a mortgage isn't an easy process. Get a better understanding of how professionals make the right decisions. Where Will Your Retirement Money Come From? Retirement income may come from a variety of sources. Here's an overview of the six main sources. The History of Currency Currency has been around for a long time. Here’s a quick history lesson.