how long is a dissertation

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A dissertation length varies depending on the academic level and discipline. Typically:

  • Undergraduate dissertations are about 8,000 to 15,000 words.
  • Master's dissertations usually range from 12,000 to 50,000 words.
  • PhD dissertations are much longer, typically between 70,000 and 100,000 words, often equivalent to a book-length work or 100-300 pages.

The exact length can differ by field, with STEM dissertations generally shorter and humanities/social sciences dissertations often longer due to the depth of literature review and theoretical analysis.