<Table> <Tr> <Td> </Td> <Td> This section does not cite any sources . Please help improve this section by adding citations to reliable sources . Unsourced material may be challenged and removed . (October 2015) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This section does not cite any sources . Please help improve this section by adding citations to reliable sources . Unsourced material may be challenged and removed . (October 2015) (Learn how and when to remove this template message) </Td> </Tr> <P> The twelfth grade is the twelfth school year after kindergarten . It is also the last year of compulsory secondary education, or "high school". Students often enter the grade as 17 - and 18 - year - olds and graduate as mostly 17 or 18 - year - olds . Twelfth graders are referred to as Seniors . </P> <P> Many students consider the twelfth grade a year to relax and prepare for transition out of their old lives into college / university or the workplace . Others take advantage of the opportunity to complete additional higher level courses, such as Advanced Placement and International Baccalaureate, to earn credits for college / university . </P>

What age do students graduate high school in usa