A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals. 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 9 Facts About Social Security There are things about Social Security that might surprise you. Traditional vs. Roth IRA One or the other? Perhaps both traditional and Roth IRAs can play a part in your retirement plans. Working With A Financial Professional A financial professional is an invaluable resource to help you untangle the complexities of whatever life throws at you.