How to Write a PhD Thesis in 6 Months: Week-by-Week Plan

You can write up a PhD thesis in six months if your experiments or fieldwork are finished and you can reuse papers and drafts you already have. Split the thesis into chapters, give each chapter a share of the words, write the ones you know best first, and keep the last four weeks for revision and formatting. For an 80,000-word thesis that is about 3,600 new words a week. The free Excel planner below turns your own dates into a weekly target.

Download: Thesis writing planner (Excel, .xlsx). Free, no sign-up, and it works for a 3-month, 6-month or 12-month write-up.

How long does it take to write a PhD thesis?

We found no study that measures it. The advice that exists comes from graduates and supervisors, and it agrees on one thing: it takes longer than you expect.

Source	What it says
PhD advice page by a University of Amsterdam researcher	"Something like 6 months" is not a bad estimate for the write-up, but it is hard to predict. Part of the time goes on joining separate pieces of research into one story. Writing up often starts when funding runs out.
A blog post by a PhD graduate (hazelhall.org)	68 days of writing up, about 14 working weeks, spread over the last seven months of a four-and-a-half-year PhD. This was the write-up only, not the whole PhD, and it was done part-time.
University of Surrey physics blog	Writing up always takes longer than you think. A thesis is book-length and often about ten times longer than the longest thing the student has written before.

So six months is a sensible plan for the writing stage when the research is done. It is a plan, not a promise, so build in a buffer. What changes the number most is how much usable text you already have.

Can you write a PhD thesis in 6 months?

Probably yes if:

• Your experiments, fieldwork or analysis are finished, or will be before you start.
• You have reusable text: published papers, conference papers, the literature review from your proposal, an earlier report. The author of the 68-day account describes auditing drafted material like this first, because much of it can be adapted for the thesis.
• You can protect several hours of writing on most weekdays.
• Your supervisor has agreed a chapter order and will return drafts quickly.

Probably not if:

• The main experiments are still running or the data is not analysed.
• You have no outline and no agreed structure.
• Teaching, marking or a job takes most of your weeks.
• Feedback usually takes a month.

In that case, plan for nine or twelve months, or finish the research first. The planner works for any length.

How to write a PhD thesis in 6 months: the week-by-week plan

This plan uses 26 weeks: 22 weeks of new writing and 4 weeks for revision, references and formatting. It assumes 80,000 words (an example: check your university's limit), five writing days a week, and chapter shares from the PhD preset of our free dissertation word count breakdown. Your handbook and supervisor decide your real structure.

Before week 1 (one or two weeks): list every piece of text you already have (papers, drafts, reports, notes), write a one-page outline for each chapter, and agree the order and feedback times with your supervisor. Do not skip this. It is what makes the rest fast.

Weeks	Chapter	Words (example)	What "done" looks like
1 to 2	Methods	8,000	A complete draft. You know this one best.
3 to 5	Results chapter 1	12,000	Draft with all figures and tables in place
6 to 8	Results chapter 2	12,000	Draft with all figures and tables in place
9 to 12	Results chapter 3	12,000	Draft with all figures and tables in place
13 to 15	General discussion	12,800	Draft that answers your research questions
16 to 18	Literature review	11,200	Updated from your proposal and papers
19 to 20	Introduction	6,400	Written last, so it matches what you found
21 to 22	Conclusion and abstract	5,600	Both short and consistent with the rest
23	Whole thesis		Full draft to your supervisor. While you wait, fix figures, captions and references
24	Whole thesis		Rewrite the weakest parts using the feedback
25 to 26	Whole thesis		References, formatting, contents page, the checks your university requires, submit

The weeks are rounded. The planner gives exact dates for each chapter from your own start date and deadline.

Plans for 3 months and 12 months

Keep the same order and shares. Change only the dates. About 15% of the time at the end for revision is a sensible starting point. For an 80,000-word example at five writing days a week:

Length	Weeks	Weeks for revision	Weeks of new writing	New words per week	New words per writing day
3 months	13	2	11	7,273	1,455
6 months	26	4	22	3,636	727
12 months	52	8	44	1,818	364

Three months means writing about 1,450 words on every working day for eleven weeks. That is realistic only if much of the text already exists in papers and earlier drafts, and you can write nearly full time. Most people need the six-month or twelve-month version.

How many words a day do you need to write?

Use this formula:

words per writing day = (target words - words you already have) / writing days

writing days = weeks of new writing x writing days per week

Example: 80,000 target words, none written yet, 22 weeks of new writing and 5 writing days a week. That is 110 writing days, so 80,000 / 110 = about 727 words a day. If you already have 15,000 words you will keep, it falls to 65,000 / 110 = about 591.

Two notes. First, count only the words you will keep, and count the total of the whole thesis, not only what you typed today. Second, a word target is a pace, not a quality measure. The free dissertation word count breakdown also works out words per day from your deadline and the days you take off.

Which chapter should you write first?

There is no single right answer. The Skills pages of Utrecht University's Earth Sciences programme say there is no right or wrong way to choose the order, and list several strategies: make an outline first; make your figures and tables first, then write methods, results, discussion and conclusions, with the introduction and abstract after; start with methods and results, because the methods chapter "should generally be quite easy to write"; or write a rough abstract and introduction first to frame your question; or build the first chapters from your research proposal.

The plan above uses the "write what you know" route: methods and results first, introduction last. Change it to suit you. The planner lets you set any order and updates the dates.

It also helps to know where the time goes. The author of the 68-day account reports that the largest part of the time went on the chapters reporting the findings and on the discussion. The literature review took 5 days, methods 3.5 days, conclusions 2.5 days, and the short introduction (a page and a half) a couple of hours. Plan most of your weeks for results and discussion.

Free thesis writing planner (Excel)

Download the thesis writing planner (.xlsx). It has four sheets:

• Start here. Five steps and a note on what each colour means.
• Plan. You type your first writing day, deadline, target length, words you already have, writing days per week, revision weeks and how many days your supervisor needs to return a draft. It works out the weeks you have, the words per week and per day you need, and a planned start and finish date for each chapter, in the order you choose.
• Weekly log. At the end of each week you type the total word count of your thesis. It shows the target for that week and whether you are on track or behind, and by how many words.
• Supervisor feedback. Add a row each time you send a draft. It works out when feedback is due and flags it when it is overdue.

To use it: fill the yellow cells on the Plan sheet, check the chapter list, then update the Weekly log every Friday. The plan does not move when you update your progress, so you always compare against the same target. The grey cells are formulas, so do not type over them.

The planner was made for Excel. It uses only basic formulas, so it should also work in Google Sheets and LibreOffice. The example dates and the 80,000-word target are placeholders: replace them with yours. To see your timeline as a chart, build it with the free PhD Gantt chart maker.

A weekly check-in message to copy

Send this to your supervisor every week, even when there is little to report. A short message every week is easier to answer than a long one every month. It is the thesis version of a weekly update.

Subject: Thesis update, week [n] of [N]

Hi [name],

Words: [total] so far. Target for this week: [target]. [On track / behind by X].
Finished this week: [chapter or section].
Working on next: [chapter or section].
Blocked by: [nothing / what].
Draft waiting for your feedback: [chapter], sent on [date], due on [date].
One question: [question].

Thanks,
[name]

How to agree draft feedback times with your supervisor

Slow feedback is the most common reason a write-up slips. Ask for a turnaround time in writing at the start. You can copy this email:

Subject: Plan for writing up my thesis

Dear [Professor X],

I plan to submit on [date]. To make that possible I have planned the writing
chapter by chapter (attached). Could we agree three things?

1. Order and dates. I will send one chapter at a time, in this order:
   [list], about every [x] weeks.
2. Turnaround. Could you return each chapter within [14] days? If you will be
   away, I will tell you the date in advance and plan around it.
3. Type of feedback. For first drafts I would most like comments on structure
   and argument, not on wording. I will ask for detailed comments on the full
   draft in week [23].

Could we also have a short meeting every [two] weeks to go through the
comments?

Thank you,
[name]

Some supervisors will not agree to fixed times. Even then, a date you have written down lets you plan: write the next chapter while you wait for the last. Our supervision meeting agenda has questions for the meetings.

What to do when you fall behind

1. Look at the numbers every week. A slip you see in a week is small. A slip you see at the end is a crisis. The status column in the Weekly log does this.
2. Write the rough draft. A first draft does not need to be good. A chapter you polish for a month is a chapter you have not finished.
3. Cut scope with your supervisor, early. Shorten the literature review, move detail into appendices, or merge two thin results chapters. Ask before you cut.
4. Protect the writing hours. Fixed times, the same place, notifications off. Near the end, avoid planning large events such as a house move, a wedding or a new job, as the 68-day account advises.
5. Tell your supervisor the new date, with a plan. Then check your funding end date, visa and your university's extension rules. Our PhD timeline guide explains how to work backwards from fixed dates, and the progress report guide has wording for a slow period.

For supervisors

• Agree the plan in writing before the student starts: chapter order, dates, and your turnaround time. A student who knows when feedback comes can plan the next chapter.
• Read for structure first. Comment on argument and organisation in early drafts. Save line edits for the full draft.
• Watch the weekly numbers. Three weeks behind the target is a conversation, not a crisis. Six is a crisis.
• Name the buffer. Tell the student that the last four weeks are for revision and formatting, not for new chapters.

How LetRelay does it

In a LetRelay research group, a PI can set any student a deadline such as a chapter draft from the People view, and the deadline sends reminders to the student and supervisors 30, 7 and 1 days before. Degree milestones carry a supervisor sign-off, funding end dates and visa expiry show up well before they bite, and the weekly update makes a slipping step visible in weeks, not at the annual review. More on the LetRelay for research groups page.

FAQ

How long does it take to write a PhD thesis?

Published advice is mostly personal. One PhD advice page from the University of Amsterdam says about six months is a reasonable estimate for the write-up, one graduate reports 68 days of writing spread over seven months, and a University of Surrey physics blog says it always takes longer than you think. Plan about six months once the research is done, and add a buffer.

Can you write a PhD thesis in 3 months?

Only if the research is finished and much of the text already exists in papers and earlier drafts. For an 80,000-word thesis, three months with two weeks of revision means about 7,300 new words a week, or about 1,450 on every working day for eleven weeks.

How many words a day should I write for my PhD thesis?

Divide the words you still need by your writing days. For 80,000 words over 22 weeks of new writing at five days a week, it is about 730 a day. The planner works it out from your own dates and target.

Which chapter should I write first in a PhD thesis?

Many students start with methods and results because they know them best, and leave the introduction and abstract until the end, so they match what they found. Utrecht University's writing guide lists several valid orders, including starting from your research proposal, and says no single order is right.

How do I make a thesis writing schedule?

Start from your deadline and work backwards: keep the last weeks for revision and formatting, then split the remaining weeks between chapters in proportion to their word counts, in the order you will write them. The free planner does this for you, and the PhD Gantt chart maker can draw it.

Is there a free thesis writing planner?

Yes. The Excel planner above is free, needs no sign-up, and has a plan sheet, a weekly log and a supervisor feedback tracker. It is made for Excel and uses basic formulas, so it should also work in Google Sheets.

What if my supervisor is slow to give feedback?

Agree a turnaround time at the start, in writing (the email above). Send one chapter at a time. Write the next chapter while you wait, and track the dates in the feedback sheet. If feedback is late, send a short reminder with the date you asked for.

Sources

• Christof Monz, University of Amsterdam: PhD Survival Tips (the write-up)
• How long does it take to write a PhD thesis? (hazelhall.org, 2017)
• University of Surrey Physics blog: Writing a PhD thesis takes longer than you think, one law of physics that cannot be broken (2011)
• Utrecht University, Skills Earth Sciences: Strategies to start writing