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 When Should You Take Social Security Monthly Social Security payments differ substantially depending on when you start receiving benefits. Historical Inflation This calculator shows how inflation over the years has impacted purchasing power. Questions to Consider When Buying a Vacation Home Doing your research is key before buying a vacation home.