What’s the Difference Between AS and A Level?
What’s the Difference Between AS and A Level?
Created:Updated: 23-July-2025
If you’re planning your next steps after GCSEs, you might be wondering what the difference is between an AS Level and a full A Level.
Although they are related qualifications, they’re not the same—and understanding the difference can help you make the right choice for your goals.
What Is an AS Level?
AS stands for “Advanced Subsidiary.”
It’s a standalone qualification typically studied in Year 12 (the first year of sixth form or college).
An AS Level covers about half the content of a full A Level.
You can take an AS Level as an extra subject, or as a stepping stone if you’re unsure about taking the full A Level.
See all A Level and AS Level subjects offered online.
What Is a Full A Level?
A full A Level (Advanced Level) is a two-year qualification studied in Years 12 and 13.
It’s assessed by exams at the end of the second year, and is the standard route to university in the UK.
Full A Levels are worth more UCAS points than an AS Level.
How many UCAS points is an A Level worth?
Key Differences Between AS and A Level
- Length: AS Level = 1 year, A Level = 2 years
- UCAS Points: AS Levels are worth less (max 20 points for an A) than A Levels (up to 56 for an A*)
- Depth: A Level covers the full syllabus; AS Level is about half
- University Entry: Most university courses require full A Levels, but some accept AS Levels as supplementary
- Assessment: AS and A Level exams are separate; you don’t need to sit the AS to do the full A Level
Read The Uni Guide’s explainer on AS and A Level structure
Can You Take AS and A Level Separately?
Yes! You can take an AS Level on its own, or progress to the full A Level later.
AS Levels no longer count towards the final A Level grade—they are completely separate qualifications.
Frequently Asked Questions
Can I go to university with just AS Levels?
Most universities require full A Levels, but AS Levels can strengthen your application or be used for UCAS points.
Are AS Levels easier than A Levels?
AS Levels cover less content, but you’re still assessed at an advanced standard.
Should I take an AS Level or go straight to A Level?
It depends on your confidence, future plans, and how many subjects you want to study.
Learn more about your options after GCSEs on the UK Government Education Hub.