Is a master’s thesis the same thing as a dissertation? It depends on where you ask. A student finishing an MSc in Edinburgh submits a dissertation; a student finishing an MS in Texas submits a thesis; a student in Bielefeld submits a Masterarbeit, which the university translates as master’s thesis. The three documents are close cousins in purpose, length and assessment, but the labels cross over in confusing ways, especially when you apply for a PhD abroad or describe your degree on a CV. This thesis vs dissertation guide maps the terminology for the UK, the US and the main continental systems, and explains what each term usually implies about credits, word count and examination.
This article is part of our guide How to Write a Master’s Thesis by the Mastermind PhD team and relates to our Master’s Thesis support service. Sources last checked: November 2026.
What is a master’s thesis? A master’s thesis is an extended piece of supervised, independent research submitted at the end of a second-cycle degree. It typically carries 15 to 45 ECTS credits (or 60 UK credits), runs to roughly 15,000 to 25,000 words, and is assessed by at least two examiners. In UK usage the same document is called a dissertation; in US usage “dissertation” is reserved for the doctoral document.
Thesis vs dissertation: why does one document have two names?
Both words come from Latin. A thesis was originally a proposition to be defended in debate; a dissertatio was the written discourse that developed it. British universities came to use “thesis” for the doctoral work defended in a viva and “dissertation” for the shorter taught-degree project; American graduate schools settled on the opposite convention. In the thesis vs dissertation question neither usage is more correct, and your university’s handbook decides which applies to you.
How are the terms used in the UK?
On the UK side of the thesis vs dissertation divide, “dissertation” usually means the research project that ends a taught master’s degree (MA, MSc, MBA, LLM), and “thesis” means the document submitted for a research degree (MPhil, PhD).
The QAA Characteristics Statement for the master’s degree (February 2020) describes three categories of master’s degree and notes that in England, Wales and Northern Ireland a master’s typically carries a minimum of 180 credits, of which at least 150 are at master’s level. For specialised or advanced study master’s degrees (the MSc and MA most international students take), the Statement says that frequently at least a third of the course is devoted to a research project leading to a dissertation. For research master’s degrees (MPhil, MRes, MLitt) it refers to “a dissertation or thesis” and notes that the thesis is commonly defended in an oral examination.
Concrete examples from current regulations show the pattern:
- University of Edinburgh, MSc Theatre and Performance Studies Dissertation (2025/26): a 60-credit course (30 ECTS) whose dissertation “will be 15,000 words in length (excluding the bibliography)”.
- University of York, taught MA Dissertation module CES00016M (2025/26): 80 credits, a project of 14,000 to 16,000 words.
- Oxford Brookes University, research degree regulations: the document for MPhil and PhD is called a thesis, with upper word limits of 40,000 words for PhDs in science, engineering, art and design and 100,000 words for PhDs in humanities, social sciences and business.
The word count gap tells the thesis vs dissertation story: the UK dissertation is a one-semester, 60-credit research exercise, while the UK thesis is a multi-year research degree.
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How are the terms used in the US?
American graduate schools use the thesis vs dissertation labels the other way round. Cornell University’s Graduate School formatting guidance labels information for master’s candidates as pertaining to “theses” and information for doctoral candidates as pertaining to “dissertations”. The University of Texas at Dallas formatting guide states the same rule: “the term dissertation refers to the final research paper for the doctoral degree” and “the term thesis refers to the research paper required for some master’s programs”.
Two further US features matter for international students. First, many US master’s programs are “non-thesis” tracks that end in coursework, a comprehensive exam or a capstone project, so a US master’s does not automatically include a thesis. Second, the thesis is normally approved by a committee rather than by two independent examiners, and a short oral defense is common even at master’s level.
What do European countries call the document?
Most continental systems have a national term that universities translate as “master’s thesis” in English-taught programs, and a separate word for the doctoral document.
| Country | Master’s document (national term) | Doctoral document | What the official pages we checked show |
|---|---|---|---|
| Germany | Masterarbeit (master’s thesis) | Dissertation / Doktorarbeit | Bielefeld (MSc Molecular Biotechnology): 30 credit points, 900 hours, 6 months, usually 50 to 80 pages. FAU Erlangen-Nürnberg (business psychology): about 60 pages excluding figures, tables, references and appendix |
| Netherlands | Masterscriptie / master’s thesis | Proefschrift (PhD thesis) | Utrecht (Earth Structure and Dynamics): research project and thesis together 30 to 45 EC, assessed independently by the supervisor and at least one additional assessor; Utrecht Spatial Planning: 22.5 EC |
| Sweden | Examensarbete / masteruppsats (degree project) | Doktorsavhandling | Linköping (TQXX30): “Degree project – Master’s Thesis, 30 credits”, second cycle, with a public presentation and an opposition component |
| France | Mémoire de master | Thèse de doctorat | Terminology only; length is set by each program |
| Italy | Tesi di laurea magistrale | Tesi di dottorato | Terminology only; length is set by each program |
| Spain | Trabajo de Fin de Máster (TFM) | Tesis doctoral | Terminology only; length is set by each program |
In the European thesis vs dissertation picture, “dissertation” is the odd word out: in German it is the doctoral document, in Dutch and Swedish it is rarely used at all, and in English-taught programs it appears mainly when staff have trained in the UK.
Thesis vs dissertation: how do credits, length and time compare across the three systems?
The common currency is the ECTS credit. The ECTS Users’ Guide (European Commission, 2015) allocates 60 ECTS credits to a full-time academic year and states that second-cycle (master’s) qualifications typically include 90 or 120 ECTS credits, with a minimum of 60 at second-cycle level. UK universities map two of their credits to one ECTS credit, which is why Edinburgh’s 60-credit dissertation appears as 30 ECTS.
| System and label | Usual credit weight | Typical length | Usual examination |
|---|---|---|---|
| UK taught master’s dissertation | 60 UK credits (30 ECTS), sometimes 80 | 12,000 to 20,000 words | Two internal markers; normally no oral |
| UK MPhil or PhD thesis | Whole research degree | 40,000 to 100,000 words | Viva voce with internal and external examiners |
| US master’s thesis | Varies (often 6 US credit hours) | Set by department, often 50 to 100 pages | Committee approval; oral defense common |
| German Masterarbeit | 30 ECTS common | 50 to 80 pages common | Two graders; colloquium in some programs |
| Dutch master’s thesis | 22.5 to 45 EC | Set by program | Supervisor plus second assessor; sometimes a presentation |
| Swedish degree project | 30 credits (one semester) | Publication-ready manuscript | Public presentation and opposition |
Word counts and page counts in this table are the ranges that appear in the official university pages we checked in October 2026; your own program handbook overrides them.
Which word should you use on your CV or in an application?
In the thesis vs dissertation choice, use the word your target reader uses, and keep the original term in brackets when it is not English.
- Applying for a PhD in the UK after a German degree: “Master’s thesis (Masterarbeit), 30 ECTS, grade 1.3”.
- Applying to a US graduate school after a UK MSc: “MSc dissertation (equivalent to a master’s thesis), 15,000 words”.
- Writing to a UK supervisor about a doctoral document: say “PhD thesis”, not “PhD dissertation”.
- Listing publications: give the document the title it has in your university repository, then add the label in brackets.
A one-line explanation avoids the most common thesis vs dissertation misreading, which is a US reader assuming a UK “dissertation” is doctoral work, or a UK reader assuming a US “thesis” is a short essay.
Does the name change how you should write it?
No. Whatever the label, examiners look for the same things: a clear question, a method that can answer it, results reported honestly and a discussion that connects them to the literature. What the label does change is the set of rules you must check in your handbook: the word limit and what it excludes, the number of examiners, whether there is an oral component, and the submission format. Those rules differ far more between universities than the vocabulary does. If you want a second pair of eyes on structure, statistics or language before submission, that support should leave the research decisions and the authorship with you; the document, under any name, is yours to defend.
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Frequently asked questions
Is a dissertation higher than a thesis?
In the thesis vs dissertation comparison, neither word ranks above the other by itself. In the UK the thesis is the doctoral document and the dissertation is the taught master’s project; in the US it is the reverse. The level is set by the degree (second cycle or third cycle), not by the word on the cover.
Can I call my UK MSc dissertation a master’s thesis on my CV?
Yes, when the reader is outside the UK. Write “MSc dissertation (master’s thesis)” and give the word count and credits, so a US or European reader understands it was a supervised research project at second-cycle level rather than a doctoral work.
Is a Masterarbeit the same as a master’s thesis?
Yes. German universities translate Masterarbeit as master’s thesis in their English-language regulations. Typical features from the pages we checked are 30 credit points, six months of processing time and 50 to 80 pages, but each Prüfungsordnung sets its own figures.
Does a UK master’s dissertation require a viva?
Usually not. Oral examinations are standard for MPhil and PhD theses, while taught dissertations are normally double-marked. Some programs add a short presentation or poster session, so check the module description.
What is the difference between a thesis and a thesis statement?
A thesis is the whole document; a thesis statement is the one or two sentences that state the central claim or question of an essay or chapter. Supervisors in US-style programs often ask for a thesis statement in the introduction chapter of the thesis itself.
Sources
- Quality Assurance Agency for Higher Education. (2020). Characteristics Statement: Master’s Degree (3rd ed.). https://www.qaa.ac.uk/docs/qaa/quality-code/master’s-degree-characteristics-statement.pdf (accessed October 2026)
- Universität Bielefeld. Modulbeschreibung 39-M-MBT-MSc_a: Masterarbeit, Molekulare Biotechnologie (M.Sc.). https://ekvv.uni-bielefeld.de/sinfo/publ/modul/365142331 (accessed October 2026)
- European Commission. (2015). ECTS Users’ Guide 2015. Publications Office of the European Union. https://education.ec.europa.eu/sites/default/files/document-library-docs/ects-users-guide_en.pdf (accessed October 2026)
- University of Edinburgh. (2025). Degree Regulations and Programmes of Study 2025/26: MSc Theatre and Performance Studies Dissertation (CLLC11122). https://www.drps.ed.ac.uk/25-26/dpt/cxcllc11122.htm (accessed October 2026)
- Oxford Brookes University. Research Degrees Policy and Procedure Handbook, section 19: Format of the thesis. https://brookes.ac.uk/students/research-degrees-team/current-students/regulations/research-degrees-handbook/format-of-the-thesis (accessed October 2026)
- Cornell University Graduate School. Required Sections, Guidelines, and Suggestions (thesis and dissertation). https://gradschool.cornell.edu/academic-progress/thesis-dissertation/writing-your-thesis-dissertation/required-sections-guidelines-and-suggestions/ (accessed October 2026)
- Linköping University. (2021). Degree project – Master’s Thesis, 30 credits (TQXX30). https://studieinfo.liu.se/en/kurs/TQXX30/ht-2021 (accessed October 2026)
Sources last checked: November 2026. This article is general educational guidance and does not replace your university regulations or your supervisor’s instructions. How we prepare our content.