Is 1,300 characters the optimal LinkedIn post length?

No. We found no peak at 1,300 characters in 83,495 posts. The figure appears to be folklore repeated between blogs rather than a measured finding.

What is the LinkedIn post character limit?

3,000 characters for a feed post. Roughly the first 200 show before the '…see more' fold, so the opening lines carry most of the work.

How Long Should a LinkedIn Post Be? 83,495 Posts Tested

Q: What is the ideal LinkedIn post length?

There isn't one. For text-only posts we found no measurable difference: 48% of creators did better with long posts and 52% with short ones. Across all formats, long posts earned about 13% more than the same creator's short posts.

Q: Do longer LinkedIn posts get more engagement?

Only slightly, and much less than the raw numbers suggest. Long posts appear to earn 88% more, but most of that gap is because long posts are far more likely to include an image and to come from larger accounts. Comparing the same creator within the same format, the real gap is about 13%.

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

We tested it against 83,495 posts from 2,500 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

200–500

500–1,000

1,000–1,500

1,500–2,200

44.5

2,200+

Median reactions by length band, the raw, uncorrected view · Source: Flypost S1-C · 83,495 posts. See the correction below: this view is confounded.

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. The longest posts earn 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 carry an image, 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.

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.

How it was tested	Long vs short	Verdict
Across creators, all formats	+88%	Confounded, ignore
Within the same format (image, text, video separately)	+16% to +43%	Partly survives
*Within the same creator and* the same format** (710 paired)	+13%	Defensible
Text-only posts, within creator (121 paired)	1.00×, no change	Defensible

The honest conclusions:

Among creators who write both, long posts earn about 13% more than their own short posts. Real, but a seventh of what the raw chart claimed.
For text-only posts, length makes no measurable difference. 48% of creators do better long, 52% better short. That is a coin flip.
The "keep it under 1,300 characters" rule has no support in our data, and neither does "write longer."

What actually affects LinkedIn engagement?

What you attach, and how you open.

Attaching an image was worth +33% against the same creator's text posts, and it worked for 70% of them. If you do attach one, the LinkedIn image sizes and aspect ratios decide how much feed space it takes up. Opening in the first person, meaning "I", "my" or "we", was worth about +20%. Both survived the same paired testing that dismantled the length finding.

Length is a symptom of having something to say. It is not a 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.
Don't pad. A 2,500-character post is not better than a 900-character one carrying the same idea. The data says the extra words alone earn you nothing.
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.

How we tested LinkedIn post length

83,495 posts with text bodies, from 2,500 stratified B2B creators, collected in a single sweep in July 2026 covering the previous twelve months. Reshares excluded. Engagement counted only after posts were at least 14 days old. Medians and interquartile ranges throughout, never means.

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 121 creators, so we report it as a strong signal rather than a settled number.

Sanity check on the top band: 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 130,000 posts, which tested eleven common rules the same way. See also LinkedIn image sizes and post dimensions.