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How long should my PhD motivation letter be and how should I format it?

07 Oct 2026 · Answered by Mahalakshmi K · 2 min read
Quick Answer verified

A PhD motivation letter should typically run 500 to 800 words though this varies by programme and university. Use a professional font such as Times New Roman or Arial at 11 to 12 pt, keep 1-inch margins, use single or 1.15 spacing and usually submit a PDF.

Mahalakshmi K
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Aim for roughly 500 to 800 words in your PhD motivation letter, unless the university gives its own limit; word count and file format vary by programme and university. Keep the layout clean and professional, with consistent styling and clear paragraphs, so reviewers can read it quickly.

PhD Motivation Letter Formatting Checklist

ElementRecommendation
LengthTypically 500 to 800 words, but this varies by programme and university
FontA professional font such as Times New Roman or Arial
Font size11 to 12 pt
Margins1 inch (2.54 cm) on all sides
Paragraph spacingSingle or 1.15 line spacing with a blank line between paragraphs
File formatUsually PDF, but file format varies by programme and university
File nameA clear name such as FirstName_LastName_PhD_Motivation_Letter.pdf, or follow the university's instructions

Why Formatting Matters

A tidy layout makes a good first impression and makes your application easier for admissions committees to review. Requirements can differ across universities, so any instruction on the application page overrides general advice.

My Advice

Read the application guidelines first and note any word limit, file type or naming rule. Then format your letter to match and export it as a PDF so the layout stays the same on every device.

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