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 Critical Estate Documents Sound estate management includes creating financial and healthcare documents. Here's an inside look. Choosing a Business Structure Entrepreneurs all face the same question, “Which business structure should I adopt?” Paying Off a Credit Card Enter various payment options and determine how long it may take to pay off a credit card.