Your A-Level subject combination can affect which university courses you are eligible for, how well your subjects complement one another and, ultimately, the options available to you after sixth form.
But there is no single best A-Level combination for every student. A student considering Medicine will need a very different combination from someone interested in English Literature, Economics or Computer Science. What matters is choosing subjects that suit your strengths while meeting — or exceeding — the subject requirements for the degrees you may want to pursue.
This guide covers some of the best A-Level subject combinations for different university and career paths, which subjects go well together, combinations to approach carefully, and how to make your choices if you aren’t yet sure what you want to study.
Why do A-Level subject combinations matter?
A-Level choices can determine which degree courses you can apply to two years later. Many university courses have specific subject requirements, particularly in areas such as Medicine, Engineering and Technology, Economics and the sciences.
That’s why it’s important to research university options before finalising your A-Levels.
The strongest combination of subjects will usually do three things:
- Meet the entry requirements for the university courses you’re considering.
- Play to your academic strengths and give you the best opportunity to achieve strong grades.
- Develop complementary knowledge and skills that prepare you for study at degree level.
This is particularly important for students aiming for competitive courses and top universities, where simply meeting the minimum requirements may not always make for the strongest possible application.
How should you choose your A-Level subjects?
Before looking at specific A level subject combinations, there are four questions worth asking.
1. What might you want to study at university?
If you already have a particular degree or career path in mind, start there.
Look at several university course pages and note whether subjects are listed as required, recommended or useful. Requirements can differ between UK universities, even for the same degree, so don’t assume that checking one university is enough.
If you have a specific course in mind, check individual university requirements before committing to your choices.
2. Which subjects are you strongest in?
A-Levels are a significant step up from GCSE. Your GCSE grades can therefore provide useful information about where your academic strengths currently lie.
When choosing your subjects, consider where you are already performing well and which areas you are most likely to succeed in at A-Level. Universities will consider your eventual A-Level grades alongside your subject selection, so choosing subjects that suit your academic strengths can put you in a better position to achieve high grades.
If you want to strengthen your performance before making the step up to A-Level, our GCSE Tutors can provide targeted one-to-one support to address weaker areas, build confidence and help you work towards higher grades. The Profs has been the UK’s top-rated tutoring company on Trustpilot since 2016, with an excellent 4.9 out of 5 score.
3. Which subjects do you actually enjoy?
You will spend two years studying your three subjects in considerable depth. Interest matters.
A student who enjoys an essay subject such as History may be much more motivated to read independently and develop their writing than someone who chose it simply because they thought universities would like it.
4. Do your subjects keep enough options open?
At 16, you don’t necessarily need to know your future career.
If you’re undecided, look for a combination that gives you flexibility. Maths, sciences, English Literature, History, Geography and modern languages, for example, can support a wide variety of academic pathways.
You may still hear these described as facilitating subjects. These are academically rigorous subjects that have traditionally been viewed favourably by top universities and can provide strong preparation for a wide range of degree courses.
Best A-Level Subject Combinations for Different Degrees
So, which A-Level subject combinations work best?
The combinations below are among the strongest and most popular choices for particular degree pathways. They pair complementary subjects that build the knowledge and skills universities look for while meeting common course requirements.
Best A-Level combination for Medicine: Biology, Chemistry and Maths
In short, two science subjects are typically expected for Medicine, with Chemistry required by many medical schools. However, requirements vary: some universities make Chemistry compulsory, while others require Biology or accept either subject.
A tried-and-true combination for Medicine is:
Biology + Chemistry + Mathematics
This is also one of the most common A-Level combinations in the UK.
Chemistry and Biology provide the scientific foundation relevant to Medicine, while A-Level Maths develops quantitative and analytical skills.
Other possible combinations include:
Biology + Chemistry + Physics
or, depending on the universities being considered:
Chemistry + Mathematics + another academically rigorous third subject
Best A-Level subject combinations for Engineering
For many Engineering degrees, Maths and Physics form the core combination.
Strong options include:
Mathematics + Physics + Further Mathematics
Mathematics + Physics + Chemistry
Mathematics + Physics + Computer Science
The appropriate third subject depends partly on the type of Engineering you may pursue. Chemistry, for example, is particularly relevant to Chemical Engineering, while Computer Science can complement pathways involving computing and technology.
Students targeting highly mathematical Engineering courses should pay particularly close attention to Further Mathematics. Where a school offers it, some highly competitive courses may strongly prefer or expect it.
Best A-Level combinations for Mathematics
For students already considering Mathematics at degree level, a natural combination is:
Mathematics + Further Mathematics + Physics
Other strong combinations include:
Mathematics + Further Mathematics + Chemistry
Mathematics + Further Mathematics + Computer Science
Further Mathematics gives students greater exposure to advanced mathematical concepts and can be particularly valuable preparation for a demanding quantitative academic degree.
For highly selective Mathematics university courses, students should investigate Further Mathematics requirements early rather than discovering in Year 13 that their A-Level choices have restricted their options.
Best A-Level subject combinations for Computer Science
A strong combination is:
Mathematics + Further Mathematics + Computer Science
Other possibilities include:
Mathematics + Computer Science + Physics
Mathematics + Further Mathematics + Physics
One potentially surprising point is that Computer Science A-Level isn’t universally required for Computer Science degrees. Mathematics can be considerably more important for entry to mathematically demanding courses.
Best A-Level combination for Economics
Economics A-Level is not always required for an Economics degree, although it is considered helpful preparation. Maths is a crucial subject, however.
Strong combinations include:
Mathematics + Economics + Further Mathematics
Mathematics + Economics + History
Mathematics + Economics + Physics
Mathematics + Economics + Geography
Economics combines quantitative analysis with argument, evaluation and communication, so several different third subjects can work well.
A combination such as Economics, History and Politics may look intuitively relevant, but omitting Mathematics could close off many Economics degrees.
Best A-Level combinations for Law
For many Law degrees, Law A-Level isn’t a requirement, with universities often favouring traditional essay-based subjects.
Strong combinations include:
History + English Literature + Politics
History + English Literature + a modern language
History + Philosophy/Religious Studies + Mathematics
Law demands close reading, critical thinking, argument and precise written communication. Subjects requiring students to evaluate evidence and construct sustained arguments can therefore provide useful preparation.
An A-Level History or English Literature course, for example, develops many of the research and essay skills that later become important in legal education.
Best A-Level combinations for English Literature
If you intend to study English Literature at university, taking English Literature at A-Level is the obvious starting point.
Combinations that go well together include:
English Literature + History + a modern language
English Literature + History + Politics
English Literature + Philosophy/Religious Studies + a modern language
These humanities combinations build complementary skills in textual analysis, argument, research and extended writing.
If you’re deciding between English Language and Literature, check the requirements for the degree courses you’re considering. They are distinct A-Level subjects and aren’t necessarily interchangeable for university admission.
Best A-Level combinations for Psychology
Possible combinations include:
Psychology + Biology + Mathematics
Psychology + Biology + Chemistry
Psychology + Mathematics + Sociology
Psychology sits at the intersection of science and the humanities, which means students can build quite different combinations around it.
A-Level Psychology develops research, evaluation and data-handling skills, while Biology can provide useful scientific knowledge and Mathematics supports quantitative reasoning.
Many university Psychology courses require or favour at least one science at A Level, so keep that in mind before settling on your third subject.
Best A-Level combinations for Biology and other sciences
For students interested in the biological sciences:
Biology + Chemistry + Mathematics
is a highly versatile combination.
Other possibilities include:
Biology + Chemistry + Physics
Biology + Mathematics + Geography
Biology + Chemistry + Psychology
If your interests lie more towards physical science, Mathematics + Physics + Chemistry is another strong trio.
Although Biology and Physics can certainly be taken together, think about the third subject carefully. Mathematics or Chemistry may considerably broaden the science and degree pathways available.
Best A Level combinations for Humanities
A good humanities combination should develop academic writing, evidence evaluation and critical thinking while supporting the subject you may eventually want to study.
Some great combinations include:
History + English Literature + Politics
History + Geography + English Literature
History + a modern language + English Literature
Geography + Economics + Mathematics
There is also no requirement to stay exclusively within one discipline. A science or Maths A-Level alongside two humanities subjects can create useful breadth and keep your options open.
Are there A-Level combinations to avoid?
Some A-Level combinations can limit your university options, particularly if they exclude required subjects or include qualifications that certain universities do not accept. Here are the main combinations to be cautious of.
1. Combinations missing a required subject
The biggest risk when choosing your A-Levels is leaving out a subject that is required for the university course you may later want to study.
Someone interested in Engineering who doesn’t take Maths, for example, may find many relevant university courses unavailable to them.
Likewise, a student considering Economics should check whether their target universities require Mathematics before deciding against Maths A-Level.
2. General Studies, Critical Thinking & other “soft” subjects
Be particularly careful about relying on subjects such as General Studies or Critical Thinking as one of your three main A-Levels.
Some leading universities either don’t accept these subjects at all or won’t count them towards standard entry requirements. For example, UCL currently excludes both General Studies and Critical Thinking from its entry requirements, while Cambridge says Critical Thinking does not count as an A-Level for admission. Oxford does not accept General Studies for any course.
3. Very similar subjects
Overlap isn’t automatically bad. Mathematics and Further Mathematics are deliberately complementary, for example.
But think carefully about whether three closely related subjects give you the breadth you need. Business Studies with Economics may work well for one student but be unnecessarily narrow for another.
4. Choosing four A-Levels purely to appear competitive
A fourth subject can make sense for some students, particularly Further Mathematics. But simply adding another A-Level doesn’t necessarily make an application stronger.
Three excellent grades in strategically chosen subjects can be more useful than stretching yourself across four and performing less strongly.
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Frequently Asked Questions About A-Level Subject Combinations
Can I study a subject at university if I didn’t take it at A-Level?
Often, yes — particularly where the university subject has no direct school-level equivalent. Courses such as Law and many other academic disciplines don’t necessarily expect applicants to have studied the subject before.
However, this varies considerably. Some degree courses have strict prerequisites, so always check the subject requirements for the individual universities you’re considering.
Is it better to take three or four A-Levels?
For most students, three subjects are sufficient. Taking a fourth A-Level only makes sense if there is a clear academic reason and you can manage the additional workload without compromising your grades.
Further Mathematics is a notable example where a fourth subject can sometimes make sense, particularly for students pursuing highly mathematical pathways.
What is the most useful A-Level subject?
There isn’t one universally most useful A-Level subject because usefulness depends on what you want to study.
However, Mathematics is required or highly relevant for a particularly wide range of quantitative degrees, including Mathematics, Engineering, Economics, Physics and many Computer Science courses. Chemistry and Biology are similarly important for Medicine and related sciences, while English Literature and History provide strong preparation for many humanities degrees.
If you’re undecided, look at the entry requirements for several degree areas you’re considering and identify which subjects recur most often.
