Saving for Retirement This calculator can help you estimate how much you may need to save for retirement. You are viewing this website at a small screen resolution which doesn't support calculators. Click here to view this calculator. Share | Related Content 18 Years’ Worth of Days The average retirement lasts for 18 years, with many lasting even longer. Will you fill your post-retirement days with purpose? Volunteering in Retirement For many, retirement includes contributing their time and talents to an organization in need. A Look at Systematic Withdrawals This calculator may help you estimate how long funds may last given regular withdrawals.