Each presidents age.

     Joe Biden (2021-):
        Inauguration Age: 78

    Donald Trump (2017-2021):
        Inauguration Age: 70

    Barack Obama (2009-2017):
        Inauguration Age: 47

    George W. Bush (2001-2009):
        Inauguration Age: 54

    Bill Clinton (1993-2001):
        Inauguration Age: 46

    George H.W. Bush (1989-1993):
        Inauguration Age: 64

    Ronald Reagan (1981-1989):
        Inauguration Age: 69

    Jimmy Carter (1977-1981):
        Inauguration Age: 52

    Gerald Ford (1974-1977):
        Inauguration Age: 61

    Richard Nixon (1969-1974):
        Inauguration Age: 56

    Lyndon B. Johnson (1963-1969):
        Inauguration Age: 55

    John F. Kennedy (1961-1963):
        Inauguration Age: 43

    Dwight D. Eisenhower (1953-1961):
        Inauguration Age: 62

    Harry S. Truman (1945-1953):
        Inauguration Age: 60

    Franklin D. Roosevelt (1933-1945):
        Inauguration Age: 51

    Herbert Hoover (1929-1933):
        Inauguration Age: 54

    Calvin Coolidge (1923-1929):
        Inauguration Age: 51

    Warren G. Harding (1921-1923):
        Inauguration Age: 55

    Woodrow Wilson (1913-1921):
        Inauguration Age: 56

    William Howard Taft (1909-1913):
        Inauguration Age: 51

    Theodore Roosevelt (1901-1909):
        Inauguration Age: 42

    William McKinley (1897-1901):
        Inauguration Age: 54

    Grover Cleveland (1893-1897):
        Inauguration Age: 55

    Benjamin Harrison (1889-1893):
        Inauguration Age: 55

    Grover Cleveland (1885-1889):
        Inauguration Age: 47

    Chester A. Arthur (1881-1885):
        Inauguration Age: 51

    James A. Garfield (1881):
        Inauguration Age: 49

    Rutherford B. Hayes (1877-1881):
        Inauguration Age: 54

    Ulysses S. Grant (1869-1877):
        Inauguration Age: 46

    Andrew Johnson (1865-1869):
        Inauguration Age: 56

    Abraham Lincoln (1861-1865):
        Inauguration Age: 52

    James Buchanan (1857-1861):
        Inauguration Age: 65

    Franklin Pierce (1853-1857):
        Inauguration Age: 48

    Millard Fillmore (1850-1853):
        Inauguration Age: 50

    Zachary Taylor (1849-1850):
        Inauguration Age: 64

    James K. Polk (1845-1849):
        Inauguration Age: 49

    John Tyler (1841-1845):
        Inauguration Age: 51

    William Henry Harrison (1841):
        Inauguration Age: 68

    Martin Van Buren (1837-1841):
        Inauguration Age: 54

    Andrew Jackson (1829-1837):
        Inauguration Age: 61

    John Quincy Adams (1825-1829):
        Inauguration Age: 57

    James Monroe (1817-1825):
        Inauguration Age: 58

    James Madison (1809-1817):
        Inauguration Age: 57

    Thomas Jefferson (1801-1809):
        Inauguration Age: 57

    John Adams (1797-1801):
        Inauguration Age: 61

    George Washington (1789-1797):
        Inauguration Age: 57