A Levels guide
What Are A Levels? A Plain Guide
A Level is the pre-university stage of school for students of about 16 to 18. It is subject-based: a student usually takes three or four subjects in depth.
How A Levels are structured
Cambridge and Pearson Edexcel International A Levels are split into an AS stage and an A2 stage. A student can stop after AS or continue to A2 to complete the full A Level. UK specifications from AQA and OCR are examined at the end of the full course.
Our guide to AS and A2 explains how the stages fit together.
How many subjects?
Most students take three, and some take four. Universities publish the subjects and grades they require for each course, so choose with those in mind. See our A Levels tutors page for the subjects we cover.
How are they examined?
Mostly by written papers, with practical assessment in sciences and, in some subjects, coursework. Cambridge and Pearson Edexcel International A Levels are sat in the May/June and October/November series.
How universities use A Levels
Universities set their own entry requirements. Some ask for specific subjects, specific grades or additional tests. Check the requirements of the courses you want as early as possible.
What are A Levels: Where to Go Next
If you want help with a subject, see A Levels tutors. For more guides, see A Levels resources, and for exam papers, our past-paper library.
For the rules, syllabuses and dates themselves, use the official websites: Cambridge International Education, Pearson Edexcel, AQA and OCR. Boards change details from time to time, so check them before you plan.
Frequently Asked Questions
Is A Level the same as FSc?
No. FSc is a Pakistani board qualification, while A Level is an international qualification. Equivalence for university entry is decided by the relevant authorities and universities, so check with them.
How long does A Level take?
Usually two years: one for AS and one for A2, though some students take them differently.
Can I change subjects after AS?
Sometimes, but the rules depend on the school and the board. Ask before you start.
Related Pages
- A Levels grading system
- AS Level and A2
- Choosing A Level subjects
- Parent's guide to A Levels
- A Levels time management
Last reviewed 2026-10-13. Check your exam board's website for the current syllabus and dates.
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