does anyone know how old alice was when she was turned into a vampire?

i read on a twilight website she was 19

i think she is 17 like edward since she is in the same year as him in high school. but not sure she even knows as she was in an assiglm most of her life

I'm sure she was 19. I've read it somewhere. ;)
As far as I remember, she was born in the same year as Edward, but she was changed 2 years later.

Alice was 19 when she was changed
she was born in 1901, same as Edward
but she was changed in 1920, two years after him

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