Saving for Retirement This calculator can help you estimate how much you may need to save for retirement. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Share | Related Content Retirement Redefined Around the country, attitudes about retirement are shifting. 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. My Retirement Savings Estimate how long your retirement savings may last using various monthly cash flow rates.