List of Presidents of the United States by age Presidential age-related data Presidential age-related data

| President | Became_Oldest_Living_President | Ceased_to_Be_Oldest_Living_President | Age_at_Start_Date | Age_at_End_Date | Duration_Years_Days | Duration_Days_ |
|---|---|---|---|---|---|---|
| George Washington | April 30, 1789 | December 14, 1799 | 57 years, 67 days | 67 years, 295 days | 10 years, 228 days | 3,880 days |
| John Adams | December 14, 1799 | July 4, 1826 | 64 years, 45 days | 90 years, 247 days | 26 years, 202 days | 9,698 days |
| James Madison | July 4, 1826 | June 28, 1836 | 75 years, 110 days | 85 years, 104 days | 9 years, 360 days | 3,647 days |
| Andrew Jackson | June 28, 1836 | June 8, 1845 | 69 years, 105 days | 78 years, 85 days | 8 years, 345 days | 3,267 days |