How old was Emma Watson in Harry Potter and the Half-Blood Prince?

Have you ever watched a movie and found yourself curious about a celebrity’s age at the time? It reveals something about timing, talent, and opportunity. In this article, we reveal the age behind the role.

In Harry Potter and the Half-Blood Prince, Emma Watson took on the role at the age of:

18 years old

Our analysis shows that this was the celebrity’s true age during filming.

The calculation of the shown age took into account the first day of the year in which the movie Harry Potter and the Half-Blood Prince was released:

January 1, 2009

And the birth date of Emma Watson:

April 15, 1990

Since movies are typically released within a year of filming, Emma Watson could have been a year younger or older than the displayed age during certain scenes.