Cambridge International AS Levels: A parent's guide

Curriculum guide

Cambridge International AS Levels

Cambridge International AS Level (Advanced Subsidiary Level) is a standalone one-year qualification set by Cambridge International, worth half a full A-Level. Many students take it as a stepping-stone into A-Level, as a "fourth subject" alongside three A-Levels, or as a standalone qualification for university entry.

Ages 16–17

One-year AS Level

Typically taken over the first year of sixth form. Students sit external exams that stand alone or count as the first half of a two-year A-Level programme.

Cambridge AS Levels

AS Level pathways

Common patterns: (1) Four AS subjects in Year 12, then continue three to A-Level in Year 13. (2) Three A-Levels alongside a fourth AS Level in a supporting subject (e.g. Maths + AS Further Maths). (3) Standalone AS Levels as university-entry credit at institutions that recognise them (many US universities, some UK).

Is Cambridge AS Levels right for your child?

It tends to suit families who…

•Want to build breadth alongside their main three A-Levels
•Are taking one subject to first-year depth without full A-Level commitment
•Value UCAS tariff credit from a fourth subject

It may be less ideal if…

•You want to keep the entire year focused on three A-Levels
•Your target university considers AS a weaker signal than a fourth A-Level

The bigger picture

UK Read the full British curriculum guide Cambridge AS Levels sits inside the wider British pathway. See how it slots in with the other stages, how universities recognise it, and where to find British-curriculum schools by country. →

Common questions

FAQs about the Cambridge AS Levels curriculum

Does an AS Level count as a full A-Level? +

No — it's worth half a full A-Level in UCAS tariff terms. A strong AS grade signals ability but doesn't replace a full A-Level for competitive admissions.

Do US universities accept AS Levels? +

Many do, especially those familiar with British applicants. AS grades often earn advanced standing or credit similar to a 3 on an AP.

Understanding international school curricula