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5 routes to getting a Doctorate

While most of those studying for a PhD take the PhD by thesis pathway, there are five viable routes to achieving a Doctorate, with both full-time and part-time options available

PhD by thesis

This is the most common means of getting a Doctorate. Over the three or four years of research at university, your PhD supervisor will support you as you aim to produce a thesis based on your research proposal .

A thesis is typically 60,000-90,000 words in length - although this can vary between institutions. For instance, the University of Glasgow's College of Social Sciences expects a thesis to be 70,000 to 100,000 words including references, bibliography and appendices, while the University of Cambridge has set an upper limit of 80,000 words.

Once completed, you'll need to defend your PhD thesis in front of a panel of examiners during your viva voce .

Doctorate by publication

This route involves submitting previously published work - such as books, book chapters and journal articles, which together form a coherent body of work and show evidence of an original contribution to a particular field of study.

The PhD by publication route is often taken by mid-career academics that haven't had the opportunity to undertake a standard Doctorate degree.

Generally, a minimum of five to eight published pieces are required, but this varies between institutions and depends on their length. The published work will be assessed to the same rigorous standards as a traditional PhD by thesis.

You must also provide a written supporting statement, which typically ranges from 5,000 to 15,000 words.

For instance, the University of Westminster asks for a commentary of 5,000 words (science and technology subjects) or 10,000 words (arts, social sciences and humanities). On the other hand, Queen Margaret University Edinburgh requires 12,000 to 15,000 words on the rationale and theoretical context for the portfolio of published work.

The work will then be presented to an academic committee. A supervisor will assist you with selecting which publications to submit, as well as guidance on the supporting statement.

Some universities accept only their own graduates for a PhD by publication, while others restrict this route to their academic staff. In general, you should have graduated from your first degree at least seven years ago to be eligible.

For example, The University of Manchester has published its own Guidance for the PhD By Published Work , with eligibility only extending to current members of staff.

Professional Doctorate

This type of Doctorate includes a significant taught component and a smaller research project, and is geared primarily towards current professionals in vocational sectors such as:

• engineering and manufacturing
• teaching and education .

Professional Doctorates are often taken on a part-time basis and can last between two and eight years. Like their standard PhD counterparts, they usually begin in October or January.

While you won't typically be looking to get an academic job , your research is expected to contribute to theory as well as professional practice. Projects often revolve around a real-life issue that affects your employer.

Several professional Doctorates, such as the Doctorate in Clinical Psychology (DClinPsy), are accredited by a professional body - for instance, the Health & Care Professions Council (HCPC) and The British Psychological Society (BPS) - and may also lead to a professional qualification .

Common titles for graduates of professional Doctorate degrees include:

• Doctor of Business Administration (DBA)
• Doctor of Education (EdD)
• Doctor of Engineering (EngD)
• Doctor of Medicine (MD).

Unlike many professional Doctorates, the EngD is typically offered as a full-time course and is aimed at young engineering graduates with little or no professional experience.

Integrated PhD

This four-year qualification, also known as the New Route PhD, involves studying a one-year research Masters degree (MRes) before progressing onto a three-year PhD.

Offered by a select number of universities across the UK, integrated PhDs are supported by the government and the British Council through UK Research and Innovation (UKRI) .

Visit Research Council funding for further information on research and funding for different types of PhD.

The integrated PhD involves a combination of taught materials, practical experience and advanced research. This allows you to learn subject-specific methodologies, while building the transferable skills that will enable you to become a leader in your chosen profession.

Institutions can also develop personalised integrated PhD programmes to meet each student's needs. For example, universities may offer you the opportunity to gain a postgraduate certificate (PGCert) in Learning and Teaching in Higher Education - perfect if you're considering a career as a higher education lecturer .

Online/distance learning PhD

As PhDs are based primarily on independent research rather than time spent in lectures and seminars, distance learning has always been a viable route for many Doctoral students.

PhDs by distance learning offered by course providers such as The Open University are therefore a good option to consider if you've got family or work commitments or are an international student - as this gives you the chance to undertake Doctoral research without having to live close to your chosen institution. It's also a suitable mode of study if your subject requires you to be based in a specific location away from the university.

For the most part, you'll be in touch with your supervisor by phone, email or Skype/Zoom. You'll need to bear in mind that even if you opt for this form of research, you'll generally still need to attend university for one or two weeks of each academic year for meetings and to receive research skills training. Your final exam may be undertaken either face-to-face or virtually.

With online PhDs, you can usually register as a full or part-time student. The level of fees you pay varies between institutions - some charge the same as for a standard PhD while others offer a reduced rate.

Check that any funding you plan to apply for is available to distance learning students, as this isn't always the case.

Search for online/distance learning PhDs .

Find out more

• Discover what is a PhD?
• Sort out funding for postgraduate study .
• Consider what to do after completing your PhD .

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PhD Education / Entry requirements

Year of entry: 2025

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Academic entry qualification overview

• Bachelor's (Honours) degree at 2:1 or above (or overseas equivalent); and
• Master's degree in a relevant subject - with an overall average of 60% or above, a minimum mark of 60% in your dissertation (or overseas equivalent)

English language

All applicants must provide evidence of English language proficiency:

• IELTS test minimum score - 7.0 overall, 7.0 in writing, 6.0 in other sections.
• TOEFL (internet based) test minimum score - 100 overall, 25 in all sections.
• Pearson Test of English (PTE) UKVI/SELT or PTE Academic minimum score - 76 overall, 76 in writing, 70 in other sections.
• To demonstrate that you have taken an undergraduate or postgraduate degree in a majority English speaking nation within the last 5 years.
• Other tests may be considered.

English language test validity

Some English Language test results are only valid for two years. Your English Language test report must be valid on the start date of the programme.

Other international entry requirements

We accept a range of qualifications from different countries. For these and general requirements including English language see entry requirements from your country.

The University requires you to reside within a commutable distance from Manchester during your time as a registered student, unless you are on approved fieldwork/a formal placement or are on a period of Submission pending. This is to ensure that you are able to meet attendance expectations and participate in wider research activities within your discipline area and/or School.

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The different routes to achieving a PhD at Imperial

Looking for funding.

Use our scholarships search tool to look for available scholarships. Also explore our latest funded PhD vacancies .

A PhD (Doctor of Philosophy) is the most common type of doctoral degree and the highest level of academic qualification you can achieve. 

It normally takes between three and four years of full-time work to complete. It is also possible to undertake a PhD part time, over five to six years.

The main activity of a PhD is to carry out an original research project under the direction of one or more supervisors, to be written up as a thesis.

Different routes to achieving a PhD

There are a number of ways to achieving a PhD at Imperial:

• by undertaking a course of study based on your own research proposal
• by joining a research project that comes with funding attached (known as a studentship)
• by combining it with Master's study in an integrated route that typically lasts four years

Pursuing your own research idea

To search for PhD opportunities based on your own research proposal you first need to identify a research group within Imperial whose area of expertise best matches your idea.

Use the links below to search the different PhD opportunities within our academic departments, centres and institutes. This includes information about current studentships and often guidance on finding a supervisor.

Our interdisciplinary approach means our expertise often spans departmental boundaries – and so do our courses – so you may find opportunities in an unexpected area of the university.

Faculty of Engineering

• Aeronautics
• Bioengineering
• Chemical Engineering
• Civil and Environmental Engineering
• School of Design Engineering
• Earth Science and Engineering
• Electrical and Electronic Engineering
• Mechanical Engineering

Faculty of Medicine

• Department of Brain Sciences
• Department of Immunology and Inflammation
• Department of Infectious Disease
• Department of Metabolism, Digestion and Reproduction
• Department of Surgery and Cancer
• National Heart and Lung Institute
• School of Public Health

Faculty of Natural Sciences

• Life Sciences
• Mathematics
• Centre for Environmental Policy

Imperial College Business School

• Doctoral programme

Centre for Languages, Culture and Communication

• PhD in Arabic, German, Italian, Russian and Spanish Studies
• PhD in science communication studies

Global Challenge institutes

We have six Global Challenge institutes, which were created to address some of society's biggest challenges.

If you have an idea for a PhD that falls within the remit of one of our Global Challenge institutes please contact them directly to discuss before making a formal application.

• Data Science Institute
• Grantham Institute – Climate Change and the Environment
• Institute for Molecular Science and Engineering
• Institute for Security Science and Technology
• Institute of Global Health Innovation

Energy Futures Lab  does not offer PhD programmes, but does deliver the  MSc in Sustainable Energy Futures .

Joint Academy of Doctoral Studies | Imperial College London-Technical University of Munich

We have recently formed  a strategic partnership in education, research and innovation  with the Technical University of Munich, one of Germany’s most international and entrepreneurial universities, producing highly ranked research, like Imperial, in science, engineering and medicine.

As part of the partnership, Imperial and TUM have launched a 'Joint Academy of Doctoral Studies' with the aim of co-developing cross-disciplinary clusters of PhD students who will have access to world-leading academic supervisors and state-of-the art facilities at both institutions.

The first round of the programme will focus on the theme of 'Artificial Intelligence, Healthcare and Robotics'.

Find out more about the Joint Academy of Doctoral Studies and apply

Professional Doctorate

Integrated PhD

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