What grade are you in when you are 18?

Do you know someone who is 18 years old and you wonder what grade they’re in? When you are 18 years old, you are either in the second half of 12th grade or you have graduated high school.

If it is the first half of the calendar year (spring), then an 18 year old is probably in 12th grade. (Senior in high school)

If it is the second part of the calendar year (Fall), then an 18 year old is probably done with high school.

What grade by age
Find out what grade student is in based on age.

How old are you in school?
How old are you in school? Check age of different grades here!