Summary
A cover letter should run 250 to 400 words across three or four short paragraphs, on one page. That range is not a convention — it is what fits inside the 30 to 60 seconds a hiring manager actually spends reading one. Both extremes are measurable: letters under 200 words draw 38% fewer callbacks, while letters over 500 words are 62% less likely to be read in full. Email versions should be shorter still.
How long should a cover letter be? 250 to 400 words, three or four paragraphs, one page.
Everyone repeats that number without explaining it, which makes it feel arbitrary. It is not. One constraint produces it — how long a hiring manager actually spends reading — and once you know that, every variation for email, entry-level roles or career changes follows without memorising anything.
How long should a cover letter be?
250 to 400 words, across three or four short paragraphs, on a single page. Aim for around 300 words as a default. Entry-level candidates sit closer to 200 to 250 words, senior and technical roles closer to 400, and email cover letters shorter still at 150 to 200.
That is the answer for most applications. Here is where the number comes from, because how long a cover letter should be is downstream of one constraint.
Ladders research puts the time a hiring manager spends reading a cover letter at 30 to 60 seconds, and 36% spend under 30 seconds. Average reading speed for screen text sits around 200 to 250 words per minute, and skimming is faster but less complete.
So do the arithmetic, and 250 to 400 words is roughly what a person can absorb in that window. The range is not a style preference. It is the capacity of the attention on offer.
Which also explains why longer does not mean more thorough. A 700-word letter does not receive twice the reading time; it receives the same 40 seconds, spent on a smaller fraction of what you wrote.
What happens if it’s too short or too long?
Notably, most advice warns only about length. The floor is real too, and it catches people who are trying to be respectful of a recruiter’s time.
| Length | What happens |
|---|---|
| Under 200 words | 38% fewer callbacks — too brief to be persuasive |
| 200–250 words | Works for entry level and email applications |
| 250–400 words | The reliable range for most applications |
| 400–500 words | Acceptable for senior, technical or career-change letters |
| Over 500 words | 62% less likely to be read in full, 41% fewer interviews |
| Over 600 words | Reads as an inability to prioritise |
A letter under 200 words usually fails for a specific reason: there is no room for a concrete proof point. You can state interest and you can state fit, but you cannot demonstrate either — and demonstration is the only part that changes a reader’s mind.
Count paragraphs, not words
Nobody writes to a word count naturally, and checking one mid-draft interrupts the thinking. Write three paragraphs instead: why this role specifically, one proof point with a number, and a short close. That structure lands between 250 and 350 words almost every time without you counting anything. Check the count once at the end, as a sanity test rather than a target.
Does the format change the length?
Substantially. An attached PDF runs 250 to 400 words. An email cover letter should be 150 to 200, because it competes with a full inbox and gets read on a phone. A portal text box usually enforces its own character limit, which overrides everything else.
Meanwhile, this is the distinction most guides bury, and it changes the answer more than experience level does.
Attached document. 250 to 400 words. Standard formatting — 11 or 12 point, one-inch margins — puts that at roughly half to three-quarters of a page, with white space that makes it look readable rather than dense.
Email body. 150 to 200 words. It arrives among forty other emails, and most people open it on a phone. The first two sentences carry almost everything.
Both. A short email introduction of 50 to 75 words, then the full letter attached. Write the email portion so it stands alone, because nobody may open the attachment.
Portal text field. Check the character limit before writing. Some cap at 2,000 characters, which is roughly 300 words including spaces.
How does length change by situation?
Entry-level candidates write 200 to 250 words, mid-level 300 to 400, career changers 300 to 400 because they need to explain the switch, and academic or research applications can run to 450 to 500 or beyond. Tech and startups reward brevity; finance and consulting expect more thoroughness.
The rule underneath all of these: how long your cover letter should be depends on how much you genuinely have to say, and no more.
| Situation | Target |
|---|---|
| Entry level or internship | 200–250 words |
| Mid-level professional | 300–400 words |
| Senior or technical role | 350–450 words |
| Career change | 300–400 — you need room to explain the switch |
| Employment gap | 300–400 — one honest paragraph on the gap |
| Academic or research | 450–500+, sometimes 1.5 to 2 pages |
| Tech or startup | 150–250 — brevity is the cultural norm |
| Finance or consulting | 350–450 — thoroughness is expected |
| Referral | 150–200 — the referral does most of the work |
The two exceptions worth understanding
Two of these deserve a note. A career change letter is longer for a real reason: the resume does not explain why you moved, and this is the only document that can. A referral letter is shorter for the opposite reason — someone has already vouched for you, so the letter’s job is confirmation rather than persuasion.
412 words, opening paragraph: "I am writing to express my strong interest in the Senior Data Analyst position at BrightPath, which I discovered on your careers page. With over six years of progressive experience in data analysis across multiple industries, including retail, logistics and financial services, I believe I possess the unique combination of technical skills and business acumen that would make me a valuable addition to your growing analytics team."
287 words, opening paragraph: "Your posting mentions the warehouse migration slipping twice. I ran that same sequence at Wexford in the wrong order, spent six weeks unpicking it, and would start by measuring which reports actually break before touching the schema."
The first spends 62 words saying nothing only this candidate could say. The second spends 38 words on something no other applicant could have written — and buys the reader's attention for the two paragraphs that follow.
How do you cut a letter that’s too long?
Broadly, four cuts, in the order that removes the most for the least loss:
1. The stock opening. “I am writing to express my interest in the position advertised on your website” is 15 words that say nothing. Open with the reason instead.
2. Adjectives about yourself. Passionate, dedicated, results-driven, detail-oriented. None of them is evidence, and a reader discounts all of them automatically.
3. Extra proof points. Three achievements at half depth persuade less than one at full depth. Keep the strongest and delete the rest — the resume carries the others.
4. Restating your resume. The reader has the resume. A letter that summarises it wastes its own purpose, which is to say the thing the resume cannot.
Write the first draft without watching the count, then cut. Editing down produces tighter prose than trying to hit a target while composing.
Shrink the margins or drop to 10-point font to fit a long letter on one page. It reads as dense on sight, and dense is what a skimming reader skips.
Does length affect ATS screening?
No. Applicant tracking systems parse content rather than measure length, so a longer letter carries no penalty at the software layer. Length matters entirely for the human reading afterwards — which is why the answer tracks reading time rather than parsing rules.
Worth stating plainly, because people conflate the two audiences constantly.
A parser is indifferent to whether your letter runs 200 words or 800. What it reads is vocabulary overlap with the posting, and that is a question of which words rather than how many. The same principle governs the resume, where how an ATS works explains what actually filters candidates.
The human reader is the entire reason for the word count. So do not lengthen a letter hoping to catch more keywords — the keywords belong in the resume, where a parser will actually search them, and an AI resume checker will tell you whether they are there.
Hiring managers spend an average of 30 to 60 seconds reading a cover letter — and 36% spend under 30 seconds.
Finally, one point on where the effort belongs. Since an AI cover letter generator can produce 400 competent words in seconds, length no longer demonstrates anything about your interest. Only specificity does — which is an argument for the short, sharp version rather than the comprehensive one.
Frequently asked questions
How long should a cover letter be?
250 to 400 words across three or four short paragraphs, on one page. Around 300 words is a reliable default for most applications.
Is 500 words too long for a cover letter?
Usually yes. Letters over 500 words are 62% less likely to be read in full and receive 41% fewer interview requests, so trim before you send.
Can a cover letter be too short?
Yes. ResumeGo found letters under 200 words receive 38% fewer callbacks, generally because there is no room for a concrete proof point.
How many paragraphs should a cover letter have?
Three or four. An opening naming the role and your reason for wanting it, one or two paragraphs of relevant evidence, and a short close.
How long should an email cover letter be?
150 to 200 words. It competes with a full inbox and often gets read on a phone, so the first two sentences have to carry the argument.
Should a cover letter ever be two pages?
Rarely — only for academic, research or senior executive applications where the convention genuinely differs. For everything else, two pages signals an inability to prioritise.
Does cover letter length affect ATS screening?
No. Applicant tracking systems parse content rather than measure length. The word count matters entirely for the human who reads it afterwards.
How long should a career change cover letter be?
300 to 400 words. The extra space is justified because your resume does not explain why you are switching fields, and the letter is the only place that can.
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