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 Question Thank you! Oops! Related Content The Richest Man in Babylon In good times and bad, consistently saving a percentage of your income is a sound financial practice. Retirement Is a Beginning Key questions to answer when you are considering retirement. Taxable vs. Tax-Deferred Savings Use this calculator to compare the future value of investments with different tax consequences.