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 Understanding Marginal Income Tax Brackets An inside look at how marginal income tax brackets work. Be My Beneficiary Financial planning for couples. 7 Father’s Day Financial Hacks for Dads From diapers to vacations to groceries, emergency trips to the doctor and more, planning for your financial future is some superhero-level stuff when it comes to family finances.