Plan your chapters
How to split your dissertation word count
A dissertation’s word count is not divided equally between chapters — some sections carry far more weight than others. The literature review and the analytical chapters (results and discussion) typically take the largest shares, while the introduction and conclusion are comparatively short. This calculator applies the conventional proportions used in most UK and US dissertations so you can set a realistic target for each chapter before you start writing, which is the single best defence against running out of words in the discussion or padding the introduction.
Typical split: empirical dissertation
For a dissertation that includes primary research (you collected and analysed your own data), a common distribution is: introduction 10%, literature review 25%, methodology 15%, results/findings 20%, discussion 22% and conclusion 8%. The discussion is often the highest-value chapter because it is where you interpret your findings against the literature — under-writing it is one of the most common reasons dissertations lose marks.
Typical split: theoretical dissertation
A theoretical or literature-based dissertation (no primary data) shifts weight towards reviewing and analysing existing work: introduction 12%, an extended literature review or background of around 40%, an analysis/themes chapter of 30%, a shorter discussion of 10% and a conclusion of 8%. Use the structure selector above to switch between the two models.
Make every word count
Planning your chapter lengths early keeps your writing balanced and your argument focused. If you need help structuring or writing any chapter, our specialists can support you at every stage — see our dissertation writing services, the research proposal template, or plan your timeline with our dissertation timeline guide.