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? Have A Question About This Topic? Name Email Address Message Thank you! Oops! Related Content Replacing Your Medicare Card Learn how to replace your lost, stolen, or damaged Medicare card in this helpful article. Inflation and Your Portfolio Even low inflation rates can pose a threat to investment returns. Making a Charitable Contribution There are benefits and limitations when you decide to donate stock.