Oldest Presidents in U.S. History

Have you ever wondered who was the oldest President in U.S. history? Browse this list to discover who were the oldest - and youngest - Presidents.

1. Ronald Reagan (69 years, 11 months, 14 days)
2. William H. Harrison (68 years, 0 months, 23 days)
3. James Buchanan (65 years, 10 months, 9 days)
4. George H. W. Bush (64 years, 7 months, 8 days)
5. Zachary Taylor (64 years, 3 months, 8 days)
6. Dwight D. Eisenhower (62 years, 3 months, 6 days)
7. Andrew Jackson (61 years, 11 months, 17 days)
8. John Adams (61 years, 4 months, 4 days)
9. Gerald R. Ford (61 years, 0 months, 26 days)
10. Harry S. Truman (60 years, 11 months, 4 days)
11. James Monroe (58 years 10 months, 4 days)
12. James Madison (57 years, 11 months, 16 days)
13. Thomas Jefferson (57 years, 10 months, 19 days)
14. John Quincy Adams (57 years, 7 months, 21 days)
15. George Washington (57 years, 2 months, 8 days)
16. Benjamin Harrison (55 years, 6 months, 12 days)
17. Andrew Johnson (56 years, 3 months, 17 days)
18. Woodrow Wilson (56 years, 2 months, 4 days)
19. Richard M. Nixon (56 years, 0 months, 11 days)
20. Warren G. Harding (55 years, 4 months, 2 days)
21. Lyndon B. Johnson (55 years, 2 months, 26 days)
22. Herbert Hoover (54 years, 6 months, 22 days)
23. George W. Bush (54 years, 6 months, 14 days)
24. Rutherford B. Hayes (54 years, 5 months, 0 days)
25. Martin Van Buren (54 years, 2 months, 27 days)
26. William McKinley (54 years, 1 month, 4 days)
27. Jimmy Carter (52 years, 3 months, 19 days)
28. Abraham Lincoln (52 years, 0 months, 20 days)
29. Chester A. Arthur (51 years, 11 months, 14 days)
30. William H. Taft (51 years, 5 months, 17 days)
31. Franklin D. Roosevelt (51 years, 1 month, 4 days)
32. Calvin Coolidge (51 years, 0 months, 29 days)
33. John Tyler (51 years, 0 months, 6 days)
34. Millard Fillmore (50 years, 6 months, 2 days)
35. Franklin Pierce (48 years, 3 months, 9 days)
36. James K. Polk (49 years, 4 months, 2 days)
37. James A. Garfield (49 years, 3 months, 13 days)
38. Grover Cleveland (47 years, 11 months, 14 days)
39. Ulysses S. Grant (46 years, 10 months, 5 days)
40. Bill Clinton (46 years, 5 months, 1 day)
41. John F. Kennedy (43 years, 7 months, 22 days)
42. Theodore Roosevelt (42 years, 10 months, 18 days)

* This list contains 42 U.S. Presidents rather than 43 because Grover Cleveland (who had two non-sequential terms in office) has not been counted twice.