Gellert Grindelwald was Dumbledore's childhood best friend, so it can be safe to assume that they are around the same age. There is no age given in the books for either of them, but Dumbledore is often described as extremely old. There may be an exact age written on a JK Rowling website or of the like.
As old as the acter of harry potter
Daniel Radcliffe was 15 in the third Harry Potter movie, Harry Potter and the Prisoner of Azkaban.
15yrs old
27
Daniel Radcliffe was age 12 when he took the role as Harry Potter.
Alastor "Mad-Eye" Moody. Dobby maybe Gellert Grindelwald the old Muggle Studies professor at Hogwarts Hedwig some Deatheaters probably
Harry potter is exactly 21 years old in 2008.
As old as the acter of harry potter
Harry Potter 1: 11 Harry Potter 2: 12 Harry Potter 3: 13 Harry Potter 4: 14 Harry Potter 5: 15 Harry Potter 6: 16 Harry Potter 7: 12 Harry Potter 19 Years Later: 31
Harry Potter is 16 at the start of the film, then he celebrates his birthday and turn seventeen...
22 what? In October 2011, Harry Potter is 31 years old.
no
The character Harry Potter is 16 in Harry Potter and the Half-Blood Prince.
Harry Potter was born in 1980, this means he would have been 30 years old in 2010.
Harry Potter was fifteen months old when he moved in with his Aunt and Uncle Dursley.
Daniel Radcliffe was 11 years old when he won the role of Harry Potter
Daniel Radcliffe was 15 in the third Harry Potter movie, Harry Potter and the Prisoner of Azkaban.