Masters Thesis: What It Is, How Long It Takes and Thesis vs Non-Thesis Master's

A masters thesis is an independent research project that you plan, carry out and write up under a supervisor in the final stage of a master's degree. In the regulations we checked it carries between a fifth and a third of the degree's credits, and many universities also ask you to present or defend it orally. Not every master's has one: many programmes in the US, Turkey and elsewhere offer a non-thesis track that replaces it with extra courses, a project or an exam.

How much the thesis counts, how long you get and whether you can skip it depend on the country and the programme. The figures below come from official regulations we checked in October 2026, so you can compare like with like.

What is a masters thesis?

It is the part of a master's where you produce new work instead of being taught. You choose or are given a research question, review what is already known, collect or analyse data (or build something, in design and engineering subjects) and report the results in a long written document. A supervisor guides you, and examiners grade the final text.

The UK's Quality Assurance Agency (QAA) describes the pattern in its Master's Degree Characteristics Statement (third edition, February 2020). In taught master's such as the MSc, MA and MBA, "frequently, at least a third of the course is devoted to a research project" leading to a dissertation. In an MRes, at least half of the course is commonly research. The statement also notes that most master's degrees include a research project, "but this is not the case in all master's".

Thesis vs dissertation: is there a difference?

For a master's degree the two words usually mean the same document. British universities tend to say "dissertation" for a taught master's, while US, German and Turkish regulations say "thesis". In the US, "dissertation" is mostly kept for the PhD. Our guide to doctoral degrees vs the PhD covers that longer project. Read the term your own programme uses, because the rules attached to it (word limit, defence, deadline) are what count.

Do you have to write a thesis for a master's?

Not always. Whether you have to depends on the type of master's:

• Research master's (MPhil, MRes, MLitt by research): yes. QAA says assessment "usually requires a dissertation or thesis", and the thesis "is commonly defended in an oral examination".
• Taught master's in the UK (MSc, MA): almost always a dissertation or an equivalent project. The University of Glasgow's 2026-27 regulations, for example, require 180 credits, "which includes both taught courses and a 60 credit (or more) dissertation".
• Master's in Germany: the thesis is usually compulsory. See the TUM example below.
• US and Turkish master's: many programmes let you choose between a thesis and a non-thesis track (see the next section).

Thesis vs non-thesis master's

In a non-thesis master's you take more courses and finish with a smaller project, a scholarly paper or a comprehensive exam. The total length of the degree often stays the same. Two official examples show how the swap works.

United States: University of Maryland, MS in Mechanical Engineering (2026-2027 catalog)

• Thesis option: 30 credits, made up of 24 credit hours of coursework plus 6 credits of thesis research.
• Non-thesis option: 30 credits of coursework plus a scholarly paper.

Turkey: Middle East Technical University, graduate degree rules (page updated 31 August 2026)

• Master's with thesis: at least 7 credit courses plus an ethics course and a seminar, at least 21 credits and 120 ECTS, maximum 6 semesters.
• Master's without thesis: at least 10 credit courses plus a term project, at least 30 credits and 60 ECTS, maximum 3 semesters.

METU notes that each institute board can set different curricula for individual programmes, so always read the programme page as well. You can compare the two tracks on Stuudy. Istanbul Technical University lists Offshore Engineering both with and without a thesis: on our programme pages, the thesis track ends with a research thesis and defence, and the non-thesis track ends with an internship and a capstone project. Middle East Technical University offers similar pairs, such as Biomedical Engineering (thesis) and Cyber Security (non-thesis). Our Turkey country page has more on studying there.

Interesting programmes for you

Offshore Engineering with Thesis

Master of Science · Full-time · On Campus

Istanbul Technical University

Turkey

Offshore Engineering (Without Thesis)

Master of Science · Full-time · On Campus

Istanbul Technical University

Turkey

Biomedical Engineering (Thesis)

Master of Science · Full-time · On Campus

Middle East Technical University

Turkey

Cyber Security (Non-Thesis)

Master of Science · Full-time · On Campus

Middle East Technical University

Turkey

Which should you choose?

• Choose the thesis track if you may apply for a PhD, want a research job, or want a writing sample and a supervisor who knows your work well enough to write a reference. A thesis is also the clearest evidence of research experience you can show a PhD admissions committee.
• Choose the non-thesis track if you want to enter industry quickly, prefer a broader set of courses, or need a fixed end date. At METU, for example, the non-thesis master's has a 3-semester maximum and the thesis track has 6.
• Check the switching rules before you enrol. Whether, and until when, you can move from one track to the other is set by each department.

Photo: MirkoS18, CC BY-SA 4.0, via Wikimedia Commons

How long is a masters thesis?

There is no single length. Regulations usually set the workload in credits and a time limit, and leave the page or word count to the programme.

• UK: Liverpool Hope University's 2024/25 conventions treat a 60-credit master's dissertation as effort "broadly in line with" a 12,000–15,000-word desk-based humanities dissertation. The count normally includes footnotes but excludes the reference list, bibliography and appendices. Lab-based and practice-based projects can be very different in size.
• Germany: at the Technical University of Munich, the MSc in Management regulations (consolidated version of 16 March 2022) give the thesis 30 credits of a 120-credit degree.
• US: at Maryland, the thesis is 6 of 30 credits. The catalog sets the credits but no page count, so the expected length comes from your department and advisor.

If your programme publishes a word limit, ask early whether it includes tables, references and appendices, because the rules differ.

How long does it take to write a master's thesis?

Usually one semester, sometimes two. The TUM regulations allow at most six months between the date your topic is registered and submission. A thesis not handed in on time without a valid reason counts as failed. TUM also expects the thesis to be the last exam of the degree, and you can start early only after earning 45 of the 60 compulsory credits and 6 elective credits.

Is 2 months enough to write a masters thesis?

For writing up results you already have, sometimes. For the whole project, usually not: the official time limit we checked is longer (up to six months at TUM). The parts that take time are getting a topic approved, ethics clearance for work with people, and data collection. Start these first.

How is a masters thesis assessed and defended?

Theses are graded by examiners, and many programmes end with a presentation or oral defence. The University of Maryland, Baltimore, Graduate School's 2025-2026 catalog is a typical US example:

• A committee of three to five voting members, including your advisor, examines the thesis.
• The examination is oral, and a programme can add a comprehensive written exam.
• The committee chair must sign a certification form and return it to the Graduate School at least 10 working days before the proposed exam date.
• Corrections required by the committee must be made before you submit the final thesis.

In the UK, QAA says research master's theses are "commonly defended in an oral examination". For taught master's the university decides, so check your programme handbook.

What happens if you fail the thesis?

You normally get one more attempt. At TUM, a thesis graded worse than 4.0 ("sufficient") may be repeated once with a new topic, which you must register within six weeks of receiving the grade. At Glasgow, a dissertation graded E1 or below may be reassessed on one occasion only, and the grade after reassessment is capped at D3.

Masters thesis structure

Most master's theses follow the same outline, although humanities theses may combine some chapters:

1. Title page, abstract and declaration of originality
2. Introduction: the problem, the research question and why it matters
3. Literature review: what is already known and the gap you address
4. Methods: how you collected and analysed data, or how you built and tested your design
5. Results
6. Discussion: what the results mean and their limits
7. Conclusion and suggestions for further work
8. References and appendices

Your programme handbook decides the details: the citation style, whether chapters can be published papers, the language and the word limit. At TUM Management, for example, the thesis must be written in English.

Questions to ask before you apply

The thesis rules differ more between programmes than most brochures suggest. When you compare master's degrees abroad, check four things for each one:

• Is the thesis compulsory, optional or not offered?
• How many credits does it carry, and how long do you get to write it?
• Is there an oral defence, and can you repeat the thesis if it fails?
• Do you find your own supervisor and topic, or does the department assign them?

If you are considering Germany, where the thesis is a standard part of the degree, our guide to a master's in Germany explains admission and fees. When you have a shortlist, the how to apply guide walks you through the application.

Explore more on Stuudy

Country

Turkey

Country

Germany

University

Middle East Technical University

University

Istanbul Technical University

University

Technical University of Munich

Discipline

Engineering and Technology