How Long Should a LinkedIn Post Be.

A LinkedIn post can run to 3,000 characters.

The length that does best, once you account for how many followers the author has, is 700 to 2,000 characters, and the very long post is a habit of the largest accounts.

The Data behind that comes from NBK Social’s own study of every public post on 346 LinkedIn profiles. The detail matters more than the headline, because the headline number points the wrong way.

The limit, and the fold

LinkedIn’s cap on a standard post is 3,000 characters, and the count includes spaces, emojis and line breaks.

The number that shapes a post is much smaller. One LinkedIn tool maker puts the cut-off before the “see more” link at roughly 210 characters on desktop and 140 on mobile. Everything below that line has to be earned by what sits above it.

So the real question is not how much LinkedIn allows. It is how much a reader will open.

How the length was measured

The study looked at the authors whose typical post earns at least 100 reactions and comments: 187 people and 39,858 posts. It sorted those posts into length bands by character count, line breaks included.

For each band it compared the typical post (the middle one, not the average) with the typical post across all those authors, which earns about 320 reactions and comments. A score of 1.29 means the band’s typical post earns about 29% more than that. A score of 0.59 means about 41% less.

It then ran the same comparison per 1,000 followers, which strips out account size. That second view is the one to trust for your own account.

Long posts win, until you count followers

On the plain count, the longest band wins. Posts over 2,000 characters score 1.29, about 29% more reactions and comments than the typical post, the highest of any length.

Per follower, the same band scores 0.88, about 12% below typical. The authors who write past 2,000 characters are the accounts with the most followers, and the plain count is crediting their audience, not their length.

The band that leads per follower is 700 to 2,000 characters, at 1.12: about 12% more engagement per follower than typical. The same band also draws a larger share of comments, 21.2% of its engagement against 18.8% across the set.

Short posts lose on every measure

The floor holds whichever way you look at it. Posts under 300 characters score 0.59, about 41% fewer reactions and comments than the typical post.

Widen that to everything under 700 characters and it still trails: 0.75 per follower, about 25% below typical, and the lowest share of comments in the study’s length comparison, 12.5% against 18.8% across the set.

A two-line post can still work as a single sharp thought. As a default, the numbers do not support it.

What the strongest authors actually write

The study set its 40 strongest authors beside its 136 typical ones. The strongest run a median of 1,162 characters a post, against 1,090 for the typical author.

That gap is about 70 characters, roughly one sentence. The strongest authors write a little longer, not a lot longer, and they have far bigger audiences. The median strongest author has 114,195 followers, against 27,650 for the median typical author.

If you are copying a 2,500-character post from an account with 100,000 followers, you are copying the audience as much as the format. The study’s own reading says the same: a long post from a 10,000-follower account is not carrying the audience that makes the long band look good. Our breakdown of what the strongest LinkedIn profiles have in common goes further into how those authors differ.

Layout moves engagement more than length

The study’s own conclusion is that how a post is laid out matters more than how long it is.

Line length:

• Short lines, under 60 characters each, score 1.08, about 8% above typical.
• Medium lines, 60 to 110 characters, score 0.93.
• Paragraph lines, over 110 characters each, score 0.85, about 15% below typical.

Both groups of authors in the study, those chosen for their writing and those chosen for working in social and marketing, show the same pattern.

Blank lines tell it from the other side:

• More than eight blank lines in a post score 1.11, about 11% above typical.
• Four to eight score 0.90.
• One to three, or none at all, score 0.66, about a third below typical.

The strongest authors run a median of 12 blank lines a post.

Keep the first line short

What sits above the first line break matters too. Posts with under 60 characters before that first break score 1.12, about 12% above typical. Posts with 60 to 140 characters there score 0.94.

Sentences under eight words score 1.09. Put together, the pattern is one short opening line, one idea per line, and white space between them.

Every number here is a correlation

The study is clear that each score is a correlation across accounts of very different sizes. It shows what tends to go with stronger posts, not what causes them. That is why every headline length figure sits beside the per-follower view.

It also counts only reactions and comments. Impressions are private to the author and were not measured.

What we would set as the house rule

For a company or founder account that does not have six figures of followers, we would brief it like this:

• Aim for 700 to 2,000 characters. Enough to make a point, short of the length that only works for huge accounts.
• Keep the opening line under 60 characters and above the fold.
• Write in short lines, one idea each, with a blank line between.
• Treat anything under 300 characters as the exception, not the default.
• Judge a long post by engagement per follower, not by comparing it with a bigger account.

A rule like this only holds if it is written into the brief and the approval step, rather than left to whoever drafts the post that day. That is the kind of gap a social audit and strategy looks for: what the account posts, against what the evidence says works.

Next step

Pull your last 30 posts, sort them by length band and divide engagement by your follower count at the time. If your best posts sit outside 700 to 2,000 characters, you have learned something about your audience. If they sit inside it, you have a rule.

For what else the study found on format, our piece on whether hashtags work on LinkedIn uses the same data. If your team is posting regularly but still feels stuck, NBK can help find the constraint in the system.