How Long Should a LinkedIn Post Be?

The advice is everywhere: 1,300 characters is the sweet spot. Nobody who repeats it shows their working.

We tested it against 115,000+ posts from 2,400+ B2B creators. There is no sweet spot at 1,300 characters, or anywhere else. But the more interesting finding is why so many people believe there is, because the raw numbers really do look convincing.

Do longer LinkedIn posts get more engagement?

Group posts by length and chart the median reactions, and you get a beautifully clean line.

Under 200

26

200–500

33

500–1,000

38

1,000–1,500

40

1,500–2,200

44.5

2,200+

49

Table view

Median reactions by length band, the raw, uncorrected view

Category	Median reactions	Notes
Under 200	26	6,720 posts
200–500	33	12,669 posts
500–1,000	38	24,709 posts
1,000–1,500	40	20,097 posts
1,500–2,200	44.5	13,373 posts
2,200+	49	5,927 posts

Every step up in length brings a step up in engagement. In our July 2026 data, the longest posts earned 88% more than the shortest. It is monotonic, the sample is large, and it is exactly the sort of chart that ends up screenshotted into a hundred LinkedIn posts about how you should write longer.

We nearly published it. Then we checked what else was different about those posts.

Why longer LinkedIn posts look better than they are

Long posts are not just longer. They are a different kind of post, written by different people.

• 64% of long posts carried an image in that July data, against 43% of short ones. And attaching an image is on its own worth about a third more engagement, the strongest single effect in our LinkedIn algorithm study.
• Long posts skew towards larger accounts, which earn more regardless of what they write. How much more is set out in our engagement benchmarks by audience size: the typical post goes from 27 reactions at 5,000 followers to 143 above 100,000.

So the chart above is substantially measuring "posts with images, by bigger creators" and labelling it "length".

What is the ideal LinkedIn post length?

Here is the same question asked four different ways, from least to most rigorous. The first two rows come from our July 2026 data; the last two were re-run in October 2026 on the latest twelve months.

Here, "long" means 1,500 characters or more and "short" means under 500.

The honest conclusions:

• Among creators who write both, long posts earn about 14% more than their own short posts. Real, but about a sixth of what the raw chart claimed.
• For text-only posts, the answer is unsettled. In July it was a coin flip: 48% of creators did better long, 52% better short. In October long text posts came out about 14% ahead, with 60% of creators doing better long, but that rests on only 153 people and could still be zero.
• The "keep it under 1,300 characters" rule has no support in our data, and "write longer" earns a small bump at most, nothing like the doubling the raw chart implies.

What actually affects LinkedIn engagement?

What you attach, and how you open.

Attaching an image was worth +35% against the same creator's text posts, and it worked for 73% of them. If you do attach one, the LinkedIn image sizes and aspect ratios decide how much feed space it takes up. Writing your first line in the first person, using "I", "my", "we" or "our", was worth about +19%, and it was the only one of the five LinkedIn hook archetypes we tested that beat a creator's own baseline. Both survived the same paired testing that cut the length finding down to size.

Format is the bigger lever of the two, and the ranking isn't what the raw numbers suggest: the eight types of LinkedIn post, compared against each creator's own text posts, puts video much closer to a carousel than to an image, and polls at the bottom by a distance.

What you say counts too. Posts that told a personal story, something the writer actually did, saw or went through, earned about a third more than the same creator's other posts.

Length is mostly a symptom of having something to say. At best it is a small lever.

How long should your next LinkedIn post be?

• Stop counting toward a target. There is no penalty for going long and no reward for hitting 1,300 characters. If you want an anchor, a typical post in our data runs to about 1,000 characters.
• Don't pad. A 2,500-character post is not better than a 900-character one carrying the same idea. Long posts earned a small bump at most, and padding is not the same thing as having more to say.
• The first ~200 characters still carry the load. That is roughly where the "…see more" fold lands, and it decides whether anyone reads the rest. The hard ceiling is 3,000, alongside every other LinkedIn character limit.
• If you want a lever, attach an image. It outperforms every length strategy we tested, and the aspect ratio you choose decides how much of the feed it fills.
• Write ahead, then queue it. Drafting in batches beats writing to a deadline. Here is how to see and manage your scheduled posts.

How we tested LinkedIn post length

115,000+ posts with text bodies, from 2,400+ stratified B2B creators, covering October 2025 to September 2026. We collected them in two sweeps, in July and October 2026, and re-ran every paired test on the latest twelve months. Reshares excluded. Engagement counted only after posts were at least 14 days old. Medians and interquartile ranges throughout, never means.

The raw length bands in the first chart, and the image share of long and short posts, come from the July 2026 run (83,000+ posts with text, covering July 2025 to July 2026). We did not recompute that raw view in October, because the paired tests are the ones that answer the question.

For the paired tests, a creator had to have at least three posts on each side of the comparison. The text-only test is the most rigorous and the smallest, at 153 creators, and it has moved between runs (no change in July, a small bump in October), so we report it as unsettled rather than as a number to plan around.

Sanity check on the top band, in the July data: 8,689 posts ran to 2,200 characters or more, with a median of 2,595. Only seven exceeded LinkedIn's 3,000-character limit once unicode is counted properly. The bucket is real, not an artefact.

This page is one finding from our LinkedIn algorithm study of 116,000+ posts, which tested the most repeated LinkedIn rules the same way. See also LinkedIn image sizes and post dimensions.