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? Lesser Known Provisions of the SECURE Act Learn about clauses in the SECURE Act that affect 401Ks, students, and families. A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals.