Cambridge Advanced is primarily designed for students aged 16 to 19 who require advanced studies to prepare for university or higher education. It provides Cambridge International AS and A Level courses to students.

Cambridge Advanced builds on the foundations of Cambridge Upper Secondary, while students are not required to finish that stage first.

Cambridge International AS & A Level assists students in developing independent study abilities, which institutions greatly respect.

At the completion of the program, students take internationally recognized Cambridge International AS and A Level qualifications.

Year 12 and 13 offered course at One Planet are:

English, Mathematics, Biology, Physics, Chemistry, Economics, Business, Global perspective, ICT, Computer Science, Amharic, History, Civics, HPE, Music, Art and Social Action.