Cover letter · Published October 9, 2026
Most cover letters work best as one focused page of roughly 250–400 words, but completeness and relevance matter more than an exact count.
Aim for one readable page and usually about 250–400 words for a standard private-sector cover letter. That range is a practical editing target, not a universal rule. A short letter can fail by being generic; a longer letter can be justified by explicit application instructions, academic context, or a complex senior case. The employer's directions take priority.
Length is the result of scope. A strong letter connects the role, selects one or two pieces of evidence, adds context the resume needs, and closes clearly. It does not narrate every job or restate the full resume.
Use the ONE-PAGE budget
Give each part a decision job.
| Part | Purpose | Typical budget | |---|---|---| | Opening | Name role and specific connection | 40–70 words | | Evidence block 1 | Prove a central responsibility | 70–110 words | | Evidence block 2/context | Add a second proof or explain a bridge | 70–110 words | | Close | Confirm interest and next step | 30–60 words |
These ranges are scaffolding, not arithmetic requirements. If the second block adds nothing, omit it. If the application requests responses to defined criteria, follow that format even when it exceeds one page.
Diagnose what makes letters too long
Common causes are a generic origin story, a paragraph for every role, copied resume bullets, excessive praise of the employer, apologies for missing preferences, and multiple closings. Long sentences often contain two claims without evidence.
Mark every paragraph A, E, C, or R: answer, evidence, context, repetition. Delete R. Merge context that does not change interpretation. Keep the best evidence for the core work, not the most emotionally satisfying story.
CareerOneStop's cover-letter guidance centers the employer's needs and your relevant skills and experience. That focus naturally constrains length. A letter is not a memoir or a compressed CV.
Worked example: 720 words to 335
Theo's first draft describes childhood interest in technology, summarizes five jobs, praises the company's “innovation” twice, and copies three resume bullets. At 720 words, the real case—reducing implementation delays and improving client training—arrives on page two.
He cuts the childhood story and role-by-role history. The new opening connects the company's migration challenge to his implementation work. One paragraph shows how he redesigned intake and reduced rework; the next explains a training system and why it fits the role. The close is two sentences. Final length: 335 words.
The improvement is not the number. The reviewer meets the decisive evidence sooner, and every claim can be checked against the resume.
Know what to cut first—and what to preserve
Cut duplicate greetings, filler adverbs, unsupported culture praise, job-description paraphrases, and evidence already obvious on the resume. Preserve the exact target, distinctive motivation, one or two concrete examples, necessary transition context, and any requested information.
- Use short paragraphs with one purpose.
- Prefer a measured result or scope signal to adjectives.
- Name the employer correctly and avoid mass-mail phrasing.
- Do not squeeze a long letter with tiny text or narrow margins.
- Save a module library for evidence, not whole generic letters.
- Read aloud to catch repeated setup.
If cutting makes the page vague, the original lacked prioritization rather than excess alone. Rebuild around the employer's core question.
Treat special cases explicitly
Academic, research, government, grant, and criteria-based applications may request longer statements or separate responses. Senior leadership searches may need more context, though relevance still matters. Follow the official instructions and conventions of that process.
For an email-body cover letter, shorter often works because attachments and device width change reading behavior. For an optional letter, the bar for every paragraph is higher. For a referral, one line can establish context; do not spend half a page name-dropping.
Export the final file, inspect page breaks and font size, and ensure the filename matches the role. A 400-word letter with a broken second page is not ready. The practical standard is focused, readable, and complete for the requested task.
Sources and scope
- CareerOneStop: Cover letters — Guidance on when a cover letter adds value and what its core sections should accomplish.
- CareerOneStop Resume Guide: Formatting — U.S. Department of Labor-sponsored guidance on readable layouts, dates, files, and ATS-aware formatting.
- U.S. Department of Labor: Resume Essentials Participant Guide (2026) — Current workbook covering targeted resumes, evidence, transferable skills, and special career situations.
No universal word count governs every sector or application. The suggested range is an editorial starting point; explicit employer instructions and required criteria override it. Editorial review: September 6, 2026.
Take the next useful step
Label each paragraph answer, evidence, context, or repetition; delete repetition and keep one page centered on the two strongest reasons to continue the conversation.
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Questions readers usually ask
Is 500 words too long?
Not automatically, but test whether every paragraph adds decision value and whether the application calls for that depth. Standard letters often benefit from tighter editing.
Can a cover letter be 150 words?
Yes when it still makes a specific connection and adds useful evidence. Short and generic is not better than focused and complete.
Should I use tiny text to keep one page?
No. Cut low-value content and maintain readable formatting. Page count should not override usability.
Do academic cover letters follow this range?
Often not. Academic and criteria-based applications have different conventions; follow the institution's instructions.