LinkedIn Character Limits in 2026 (Post, Headline, About & More)

The LinkedIn character limit is 3,000 characters for a post. That's the number most people came here for. But LinkedIn has more than a dozen separate limits, and the ones that quietly shape how your content performs aren't the maximums at all. They're the truncation points. The ~140 characters of a post that show before "see more." The headline that follows you across every surface of the platform. The 300-character invitation note nobody uses well. This guide covers every LinkedIn character limit in 2026, why each one matters, and exactly how to write inside them so nothing important gets cut off.

LinkedIn character limits at a glance

Here's every limit worth knowing in one table, then the detail on the ones that actually change how you write.

If you remember nothing else: 3,000 for a post, 220 for your headline, 2,600 for About, and the first line is what really counts.

The LinkedIn post limit: 3,000 characters (and the 140 that matter)

A standard feed post gives you 3,000 characters. In practice almost nobody uses all of them, and the reason is the "see more" fold.

LinkedIn truncates your post in the feed after roughly 140 characters on mobile and around 210 on desktop, then shows a "see more" link. Everything past that point is invisible until someone taps. Since most of your audience is on a phone, you're really writing two things at once:

1. The hook. The first ~140 characters that decide whether anyone reads the rest.
2. The body. The remaining ~2,860 characters that only committed readers ever see.

This is the single most important limit on LinkedIn, and it isn't even the maximum. So front-load ruthlessly. A post that opens with "I want to share some thoughts on leadership after a long week…" wastes the entire hook on throat-clearing. A post that opens with "I fired my best-performing salesperson last month. Here's why it was the right call." spends those 140 characters buying the click.

A few tactics that work inside the 3,000-character budget:

• Break after your hook. Put a line break or two right after the first sentence so the fold lands on a cliffhanger, not mid-thought.
• Use short lines. LinkedIn rewards white space. One or two sentences per "paragraph" reads far better than a dense block on mobile.
• Keep total length to what the idea needs. Long posts of 1,200 to 1,800 characters do well when the content earns it, like a real story or a specific breakdown. Padding to fill 3,000 characters is obvious, and it gets scrolled past.

If you want a repeatable structure for the part after the hook, our breakdown of 5 LinkedIn post formats that drive engagement gives you five templates that fit comfortably inside the limit.

The headline: 220 characters that follow you everywhere

Your headline is capped at 220 characters, expanded years ago from the old 120. It's the most valuable text real estate on LinkedIn, because it's the most repeated. It shows up:

• Under your name on your profile
• Next to every post you publish, in everyone's feed
• Beside every comment you leave
• In search results when someone looks for people like you
• In "People you may know" and connection suggestions

That's the same 220 characters being seen thousands of times. Waste it on "Passionate professional | Team player" and you've thrown away the one line most people will ever read about you. Almost nobody goes back and fixes it.

A headline that works usually combines three things inside the limit: what you do, who you do it for, and a proof point or specialty. For example: "Fractional CFO for Series A SaaS founders | I turn messy spreadsheets into board-ready models | 40+ raises supported." That's 108 characters. Well under the cap, scannable, and full of the keywords LinkedIn search matches against.

Because the headline is also indexed for search, front-load the terms people would actually type. If you want it drafted and tightened automatically, our bio optimizer generates headline and About options tuned to length, and the same principles from our guide to writing captions that convert apply. A headline is a caption for your entire profile.

The About section: 2,600 characters, but the first line does the work

The About (summary) section allows 2,600 characters, including spaces and line breaks. Like posts, it gets truncated: only the first two or three lines (~200–300 characters) show before a "see more" link on your profile.

So the same rule applies. The opening sentence carries the whole section. Don't start with "I am a results-driven professional with a passion for…". Start with a hook that makes people expand: a specific claim, a surprising number, a sentence that sounds like a human actually wrote it.

Structure that reliably fills 2,600 characters well:

1. A hook line (visible before the fold): the sharpest thing you can say about what you do.
2. The story: how you got here, in plain language, two or three short paragraphs.
3. What you actually help with: concrete outcomes, not adjectives.
4. Proof: numbers, names, results you can back up.
5. A call to action: how to work with you, email you, or what to read next.

You almost never need all 2,600 characters. Somewhere between 1,200 and 2,000 is the sweet spot for most profiles. Enough to be substantive, short enough that people finish it.

Comments: 1,250 characters (and why they matter more than you think)

A comment allows up to 1,250 characters, roughly 200 words, enough for a genuine reply or a mini-post. This limit is generous on purpose, and it's worth using.

Thoughtful comments are one of the most underrated growth levers on LinkedIn. A sharp 400-character comment on a big creator's post can be seen by more people than your own post that day, and it puts your headline (that 220-character line again) in front of a new audience. So treat comments as short-form content, not throwaway "Great post!" replies. You have 1,250 characters. Say something only you could say.

The connection request note: 300 characters

When you send a connection request, the optional note is capped at 300 characters. Two things to know in 2026:

• Free accounts get a limited number of note-attached invitations. LinkedIn has been tightening this for non-premium users, so each note counts. Don't burn them on generic messages.
• 300 characters is short. That's about 45 to 55 words. There's no room for a preamble.

A good note names the specific reason you're connecting and then gets out of the way: "Saw your post on onboarding activation. We ran the same experiment and got the opposite result, would love to compare notes." That's 122 characters, specific, and it gives the person a reason to accept. Skip "I'd like to add you to my professional network." That's the default, and it converts worst.

Direct messages, InMail, and articles

Direct messages to your connections allow a large amount of text, enough that the character limit is rarely the constraint. The real limit on DMs is patience. Long messages get skimmed, so lead with the ask.

InMail (messaging people you're not connected to, a premium feature) has a subject line around 200 characters and a body limit in the low thousands. Because InMail is limited and often paid for, brevity wins. A short, specific InMail out-responds a long pitch.

Articles (LinkedIn's long-form publishing) allow roughly 110,000 characters, around 15,000 words, more than you'll ever need. Articles don't get the feed distribution that native posts do, so most creators use posts for reach and save articles for evergreen, searchable pieces they link back to.

What doesn't count against your LinkedIn limits

A few things are free, and using them well buys you more room and more reach:

• Images and document carousels. A multi-page PDF carousel costs zero post characters and tends to get strong dwell time. Put the depth in the document and keep the post caption to a tight hook.
• Video and native uploads. These don't touch your 3,000-character budget.
• Polls. The poll itself is separate, though the question is capped at 140 characters and each option at 30.

The practical takeaway: if a post is running long, move part of it into a carousel or an image. Media-forward posts often perform better anyway, so it's a win either way. For the right dimensions so nothing gets cropped, our social media image sizes cheat sheet has LinkedIn's current specs.

Do hashtags, mentions, and links count?

Yes. Hashtags, @mentions, and URLs all count toward your 3,000-character post limit, character for character. This is different from X, where every link is billed at a flat 23 characters no matter its length (we cover that in the Twitter/X character limit guide).

On LinkedIn:

• A long URL eats real space. Paste a 120-character tracking link and that's 120 of your 3,000 gone. Most people instead paste the link, let LinkedIn generate a preview card, then delete the raw URL from the text. The card stays, and the characters come back.
• Hashtags count too, so there's no reason to stack 15 of them. Three to five relevant tags is plenty on LinkedIn. The platform just isn't hashtag-driven the way Instagram is (see how many hashtags to use on Instagram for the contrast).

How to write within LinkedIn's limits without counting by hand

LinkedIn's composer doesn't show a live character count as you type a post, which is exactly when you'd want one. And it's no help at all when you're drafting in a doc, a notes app, or planning a week of posts in advance. Two faster ways:

• Draft in a dedicated character counter that shows your count in real time and flags when you cross a limit, whether you're writing a 3,000-character post, a 220-character headline, or a 300-character connection note. You'll never paste something in and find out it's 40 characters too long.
• Preview before you publish. Our post preview tool shows how your text will render, including where the "see more" fold lands, so you can check whether your hook survives truncation before your audience does.

When the draft is right, you can schedule and publish it, to LinkedIn and your other networks at once, from Postlia's composer, so the same counted, previewed post goes out on time everywhere. If you're weighing a paid posting workflow, our pricing page lays out what's included.

Cross-posting: LinkedIn's limits vs. everyone else's

Publish the same idea to several platforms and the character limits collide fast. LinkedIn gives you 3,000 characters, Instagram allows 2,200, X gives free accounts just 280. Write for the tightest platform first and you'll have a core message that expands cleanly everywhere. Write a long LinkedIn post first and it gets brutally truncated the moment you cross-post it to X.

The fix is to write one sharp core message and adapt it per network, not paste the same block everywhere. Our creator's guide to cross-platform posting walks through taking one idea and reshaping it for each platform's limits and norms. And a strong hook, the thing our captions that convert guide is built around, travels across all of them.

LinkedIn character limits: the short version

The LinkedIn character limit is 3,000 for a post, 220 for your headline, and 2,600 for your About. But the numbers that actually shape performance are the truncation points, not the maximums. Your first ~140 characters decide whether a post gets read. Your 220-character headline follows you across every surface of the platform. Your first About line decides whether anyone taps "see more." Hashtags and links count, media doesn't, and you almost never need to fill the maximum.

Write the hook first, keep it short, and count as you draft with a character counter so nothing important lands past the fold. Get the first line right and every LinkedIn limit stops being a constraint. It becomes the thing that forces your writing to be clear.