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 Capital Gains Tax Estimator Use this calculator to estimate your capital gains tax. Pay Yourself First It sounds simple, but paying yourself first can really pay off. Questions to Consider When Buying a Vacation Home Doing your research is key before buying a vacation home.