Does anyone know how old emma,ruppert,and daniel are?

i know that daniel is 19 but im not sure about the others.i would guess around 19 for them tho because they look close to daniels age.

emma watson was born on 15 April 1990 so she's 19 years old. rupert grint was born on 24 August 1988 and he is 21. finally, daniel radcliffe was born on 23 July 1989 which means he's 20..