A pencil being pointed at a line of code on a laptop screen
A Computer Science student.
(Credit: Paul Tait)

Computer Science

UCAS codeG400Duration

3 years (BA)
4 years (MCompSci)

Admissions requirements

A*AA, with the A* in Maths, Further Maths or Computing/Computer Science

Subject requirements  Maths
  Further Maths
Admissions test(s)ox.ac.uk/matWritten workNone
Admissions statistics*

Interviewed: 19%
Successful: 6%
Intake: 41
*3-year average 2019-21


+44 (0) 1865 273821 / 283507
Email Computer Science

Subject requirements:       Essential       Recommended       Helpful – may be useful on course

Unistats information for this course can be found at the bottom of the page

Please note that there may be no data available if the number of course participants is very small.

Computer science is about understanding computer systems and networks at a deep level. Computers and the programs they run are among the most complex products ever created; designing and using them effectively presents immense challenges. Facing these challenges is the aim of computer science as a practical discipline, and this leads to some fundamental questions:

  • How can we capture in a precise way what we want a computer system to do?
  • Can we mathematically prove that a computer system does what we want it to?
  • How can computers help us to model and investigate complex systems like the Earth’s climate, financial systems or our own bodies?
  • What are the limits to computing? Will quantum computers extend those limits?

The theories that are now emerging to answer these kinds of questions can be immediately applied to design new computers, programs, networks and systems that are transforming science, business, culture and all other aspects of life.

Computer Science can be studied for three years (BA) or four years (Master of Computer Science). The fourth year allows the study of advanced topics and an in-depth research project. Students do not need to choose between the three-year and four-year options when applying to the course; all students apply for the four-year course, and then decide at the start of the third year whether they wish to continue to the fourth year (which is subject to achieving a 2:1 at the end of the third year).

The course concentrates on creating links between theory and practice. It covers a wide variety of software and hardware technologies and their applications. We are looking for students with strong mathematical ability, which you will develop into skills that can be used both for reasoning rigorously about the behaviour of programs and computer systems, and for applications such as scientific computing. You will also gain practical problem-solving and program design skills; the majority of subjects within the course are linked with practical work in our well-equipped laboratory.

 students at a lecture

'I love many things about my course. I love the fact that it’s hard, that it’s very theoretical and that we get a lot of practical work. Even when the work is a little challenging you’re never lost because there are so many people around to help you. The tutors really support you at every step and this motivates you to do well.

There are so many wonderful things that I’ve learnt that I never knew existed before. There are definitely moments when, sitting in front of a problem sheet, you realise that you’re at the right place. Computer Science is everything I had hoped for.'

Computer Science

A typical week

During the first part of the course, your work will be divided between about ten lectures and two tutorials each week, in addition to about two practical sessions. In tutorials you will discuss ideas in depth with an experienced computer scientist, usually with just one or two other students. You will be expected to spend a considerable amount of time developing your own understanding of the topics covered in lectures, answering questions designed to check your understanding, and preparing for tutorials.

As the course progresses, you will also begin to work in small classes of up to ten people on more specialised topics. In the second year you will take part in a group design practical, which may be sponsored by industry. In Years 3 and 4 about a third of your time is spent working on your chosen individual project. Most tutorials, classes, and lectures are delivered by staff who are tutors in their subject. Many are world-leading experts with years of experience in teaching and research. Some teaching may also be delivered by postdoctoral researchers or postgraduate students who are studying at doctorate level. 

To find out more about how our teaching year is structured, visit our Academic Year page.

Course structure



  • Core courses (100%):
    • Continuous mathematics
    • Design and analysis of algorithms
    • Digital systems
    • Discrete mathematics
    • Ethics and responsible innovation
    • Functional programming
    • Imperative programming
    • Introduction to formal proof
    • Linear algebra
    • Probability


Four exam papers



  • Core courses (50%):
    • Algorithms
    • Compilers
    • Concurrent programming
    • Models of computation
    • Group design practical
  • Current options (50%) include:
    • Computer architecture
    • Computer graphics
    • Computer networks
    • Databases
    • Artificial intelligence
    • Logic and proof


Eight exam papers



  • Current options (67%) include:
    • Computational complexity
    • Machine learning
    • Computer security
    • Computer-aided formal verification
    • Geometric modelling
    • Knowledge representation and reasoning
    • Lambda calculus and types
    • Principles of programming languages
  • Optional project work (33%)*


Six exam papers plus project report, or eight exam papers



  • Current options (62%) include:
    • Advanced topics in machine learning
    • Automata, logic and games
    • Advanced security
    • Categories, proofs and processes
    • Computational game theory
    • Computational learning theory
    • Concurrent algorithms and data structures
    • Database systems implementation
    • Probabilistic model checking
    • Probability and computing
    • Quantum software
    • Requirements
  • Project work (38%)

The courses listed above are illustrative and may change. A full list of current options is available on the Computer Science website.


Five take-home exams or written papers plus project report

The content and format of this course may change in some circumstances. Read further information about potential course changes.

* To be confirmed

Academic requirements 

A-levels:A*AA including at least an A in Mathematics, with the A* in Mathematics, Further Mathematics or Computing/Computer Science. Those taking Further Mathematics A-level or AS-level are required to achieve at least Grade A.
Advanced Highers:AA/AAB with an A in Mathematics
IB:39 (including core points) with 766 at HL (the 7 must be in HL Mathematics)

For students taking the BTEC National Extended Diploma in IT, a conditional offer will normally be: DDD in the Extended Diploma and A* in A-level Maths.

Students taking BTEC National Extended Diplomas in science or engineering will also be considered, but the above requirement for A-level Maths still stands.

Or any other equivalent (see other UK qualifications, and international qualifications

Wherever possible, your grades are considered in the context in which they have been achieved.  (See further information on how we use contextual data.) 

Subject requirements

  Essential: Candidates are expected to have Mathematics to A-level (A* or A grade), Advanced Higher (A grade), Higher Level in the IB (score 7) or another equivalent. 

Further Mathematics is highly recommended.* Those taking Further Mathematics A-level or AS-level are required to achieve at least Grade A.

*If your school offers Further Maths A-Level we expect you to have taken it. However, we understand that not all schools offer Further Maths, and so we do consider applications from people with a single Maths A-level.  If you are based in England, and your school doesn't offer Further Maths please see the Advanced Mathematics Support Programme website as they can provide extra maths support. In Wales, see the Further Mathematics Support Programme Wales

Please note from 2018-20, 97% of A-level students who were offered places for Computer Science courses (including joint courses) took Further Maths to A-level.

If a practical component forms part of any of your science A‐levels used to meet your offer, we expect you to pass it.

If English is not your first language you may also need to meet our English language requirements.


All candidates must follow the application procedure as shown in applying to Oxford. The information below gives specific details for students applying for this course. For more information on how to apply, including advice on interviews, specimen MAT papers, and sample questions, please see the Computer Science department website.

Admissions test

Test: MAT
Test date:2 November 2022         
Registration deadline:                   30 September 2022                                                                                                 

All candidates must take the Mathematics Admissions Test (MAT) as part of their application. Separate registration for this test is required and it is the responsibility of the candidate to ensure that they are registered. We strongly recommend making the arrangements in plenty of time before the deadline. Everything you need to know, including guidance on how to prepare, can be found on the MAT page

Written work

You do not need to submit any written work when you apply for this course.

What are tutors looking for?

We look for proven mathematical talent, the ability to think and work independently, the capacity to absorb and use new ideas, and enthusiasm. We use these criteria alongside the Mathematics Admissions Test (MAT) results to decide whom to interview. At interview, we explore how you tackle unfamiliar problems and respond to new ideas; we are more interested in how you approach problem-solving than the solution. We don’t require any previous formal qualification in computing, but we do expect a real interest in the subject.

For more detail on the selection criteria for this course, please see the Computer Science website.


Common roles for graduates include computer programmer, software designer and engineer, financial analyst and scientific researcher. According to figures complied by the Higher Education Statistics Agency (HESA), Computer Science graduates from Oxford attract median salaries of £65,000 just 15 months after finishing their degree, more than those from any other course.

We don't want anyone who has the academic ability to get a place to study here to be held back by their financial circumstances. To meet that aim, Oxford offers one of the most generous financial support packages available for UK students and this may be supplemented by support from your college.


These annual fees are for full-time students who begin this undergraduate course here in 2023.

Fee status

Annual Course fees


Further details about fee status eligibility can be found on the fee status webpage.

For more information please refer to our course fees page. Fees will usually increase annually. For details, please see our guidance on likely increases to fees and charges.

Living costs

Living costs at Oxford might be less than you’d expect, as our world-class resources and college provision can help keep costs down.

Living costs for the academic year starting in 2023 are estimated to be between £1,290 and £1,840 for each month you are in Oxford. Our academic year is made up of three eight-week terms, so you would not usually need to be in Oxford for much more than six months of the year but may wish to budget over a nine-month period to ensure you also have sufficient funds during the holidays to meet essential costs. For further details please visit our living costs webpage.

Financial support


A tuition fee loan is available from the UK government to cover course fees in full for Home (UK, Irish nationals and other eligible students with UK citizens' rights - see below*) students undertaking their first undergraduate degree**, so you don’t need to pay your course fees up front.

In 2023 Oxford is offering one of the most generous bursary packages of any UK university to Home students with a family income of around £42,875 or less, with additional opportunities available to UK students from households with incomes of £27,500 or less. The UK government also provides living costs support to Home students from the UK and those with settled status who meet the residence requirements.

*For courses starting on or after 1 August 2021, the UK government has confirmed that EU, other EEA, and Swiss Nationals will be eligible for student finance from the UK government if they have UK citizens’ rights (i.e. if they have pre-settled or settled status, or if they are an Irish citizen covered by the Common Travel Area arrangement). The support you can access from the government will depend on your residency status.

 See further details.

(Channel Islands and Isle of Man)

Islands students are entitled to different support to that of students from the rest of the UK.

Please refer the links below for information on the support to you available from your funding agency:

States of Jersey
States of Guernsey
Isle of Man


Please refer to the "Other Scholarships" section of our Oxford Bursaries and Scholarships page.

**If you have studied at undergraduate level before and completed your course, you will be classed as an Equivalent or Lower Qualification student (ELQ) and won’t be eligible to receive government or Oxford funding

Fees, Funding and Scholarship search

Additional Fees and Charges Information for Computer Science

There are no compulsory costs for this course beyond the fees shown above and your living costs.

Contextual information

Course data from Discover Uni provides applicants with statistics about undergraduate life at Oxford. But there is so much more to an Oxford degree that the numbers can’t convey.

The Oxford tutorial

College tutorials are central to teaching at Oxford. Typically, they take place in your college and are led by your academic tutor(s) who teach as well as do their own research. Students will also receive teaching in a variety of other ways, depending on the course. This will include lectures and classes, and may include laboratory work and fieldwork. However, tutorials offer a level of personalised attention from academic experts unavailable at most universities.

During tutorials (normally lasting an hour), college subject tutors will give you and one or two tutorial partners feedback on prepared work and cover a topic in depth. The other student(s) in your college tutorials will be from your year group, doing the same course as you and will normally be at your college. Such regular and rigorous academic discussion develops and facilitates learning in a way that isn’t possible through lectures alone. Tutorials also allow for close progress monitoring so tutors can quickly provide additional support if necessary.

Read more about tutorials and an Oxford education

College life

Our colleges are at the heart of Oxford’s reputation as one of the best universities in the world.

  • At Oxford, everyone is a member of a college as well as their subject department(s) and the University. Students therefore have both the benefits of belonging to a large, renowned institution and to a small and friendly academic community. Each college or hall is made up of academic and support staff, and students. Colleges provide a safe, supportive environment leaving you free to focus on your studies, enjoy time with friends and make the most of the huge variety of opportunities.
  • Each college has a unique character, but generally their facilities are similar. Each one, large or small, will have the following essential facilities:
    • Porters’ lodge (a staffed entrance and reception)
    • Dining hall
    • Lending library (often open 24/7 in term time)
    • Student accommodation
    • Tutors’ teaching rooms
    • Chapel and/or music rooms
    • Laundry
    • Green spaces
    • Common room (known as the JCR).
  • All first year students are offered college accommodation either on the main site of their college or in a nearby college annexe. This means that your neighbours will also be ‘freshers’ and new to life at Oxford. This accommodation is guaranteed, so you don’t need to worry about finding somewhere to live after accepting a place here, all of this is organised for you before you arrive.
  • All colleges offer at least one further year of accommodation and some offer it for the entire duration of your degree. You may choose to take up the option to live in your college for the whole of your time at Oxford, or you might decide to arrange your own accommodation after your first year – perhaps because you want to live with friends from other colleges.
  • While college academic tutors primarily support your academic development, you can also ask their advice on other things. Lots of other college staff including welfare officers help students settle in and are available to offer guidance on practical or health matters. Current students also actively support students in earlier years, sometimes as part of a college ‘family’ or as peer supporters trained by the University’s Counselling Service.

More about Oxford colleges and how you choose