Facebook Character Counter
The most complete Facebook character counter for 2026: measure post (63,206), comment (8,000), Messenger (20,000), bio, pages, groups and Facebook Ads. All in real time.
What is a Facebook character counter?
A Facebook character counter is a tool that measures in real time how many characters your text uses in each field of the platform: post, comment, Messenger message, personal profile bio, page name and description, group description, and the two most important Facebook Ads fields (primary text and headline).
Facebook is the social network with the biggest gap between its limits. A post technically allows 63,206 characters — a huge number — but in practice "…see more" truncates visible content at 125 characters on mobile and 477 on desktop. That detail completely changes how you write for Facebook.
On top of that, Facebook Ads limits work differently: they have a technical maximum and a much lower visible threshold. That is why our Facebook character counter includes separate cards for each field type, with the verified 2026 values.
Facebook character limits in 2026
These are the 12 limits our Facebook character counter measures simultaneously, all verified against Meta's official documentation.
Posts, comments and Messenger
The most generous limit of any social network. Includes spaces, emojis, line breaks and hashtags.
One of the largest comment limits. Allows elaborate replies.
Enough for complete support replies without splitting.
Personal profile and pages
One of the shortest fields on the platform.
The visible name of your business page.
The summary shown under the name. Often confused with "About".
Longer text on the page. Different from the short description.
Groups and Facebook Ads
The text explaining what the group is about to members.
The text above the creative. Above 125 the "see more" kicks in.
The bold ad headline. Meta recommends ≤27 for mobile feeds.
Posts (63,206) and the "see more" cutoff
The real limit of Facebook posts is not 63,206 characters but much less: "see more" cuts off what almost every user sees. This is where a Facebook character counter changes your editorial strategy.
Mobile: ~125 characters
On the Facebook mobile app (which drives 85%+ of traffic), the "…see more" button appears around 125 characters. Same threshold as Instagram. Everything after that is hidden from the vast majority of users who scroll past without tapping.
Desktop: ~477 characters
On desktop the cutoff is much more generous: ~477 characters. One of the biggest mobile-desktop differences of any social network. If your audience is primarily mobile (typical for B2C), optimize for 125.
Optimal length: 40-80 characters in English
Engagement studies show short Facebook posts — between 40 and 80 characters in English — get up to 66% more interaction than long posts. Facebook rewards direct, brief messages, the opposite of LinkedIn. Use the Facebook character counter to stay right in that sweet spot.
Comments (8,000) and Messenger (20,000)
Comments: the underrated field
With 8,000 characters per comment, Facebook allows replies practically the size of short articles. Many community managers use this to publish value content directly in the comments of other people's posts — a very effective personal branding tactic. It is the highest comment limit of any social network outside LinkedIn.
Messenger: near-unlimited messages
The 20,000 characters of Messenger equal about 3,500 words — more than enough for detailed support replies, long commercial messages or any B2C conversation. Only LinkedIn DM (8,000) comes close. Nothing to split.
Personal bio (101) and page descriptions
There is constant confusion between Facebook's different description fields. There are three and they have very different limits.
Personal profile bio: 101 characters
The text shown under your name on your personal profile. Only 101 characters — one of the tightest fields on the platform. Ideal for a quick identity line or location.
Page short description: 155 characters
The quick summary shown under a business page name. 155 characters to say what the brand is about at a glance. Not to be confused with the About section.
About section: 255 characters
The longest text on a page, inside the "About" tab. 255 characters to tell the value proposition, hours and location. Many online counters confuse this field with the short description.
Facebook Ads: limits by field type
Meta Ads has a quirk: almost every field has a high technical maximum and a much lower visible threshold. Writing for the max alone usually produces truncated ads and low CTR.
Primary text: 125 visible
Technically up to 63,206 characters, but only the first 125 show before "see more". Meta recommends sticking to those 125 to maximize CTR. Hooks, value props and CTAs all have to fit in 125.
Headline: 27 visible / 40 max
The bold headline can hit 40 technical characters, but mobile feeds cut it at 27. Meta officially recommends staying under 27 to avoid truncation. Every word counts double.
Link description: ~30 visible
The text below the headline. Max 255 technical but only ~30 characters show in most placements. Useful for a subtitle or a key metric.
Reels ads: 72 visible characters
Facebook Reels ads have an even tighter visible limit: 72 characters before truncation. Text competes with audio and video motion, so it has to be ultra direct.
How Facebook counts special characters
Emojis: 1 character for basic ones
Facebook counts emojis by Unicode code points, same as Instagram, TikTok and LinkedIn. Simple emojis (🚀, ❤️, 👍) count as 1. Composite ones (👨👩👧👦, 🇺🇸, 🧑🏽⚕️) use 2-7 units depending on structure.
Line breaks
Each line break counts as 1 character. In 101-character bios and 155-character short descriptions that can matter: a misplaced line break steals usable space.
Spanish takes 15-20% more space than English
A sentence translated from English into Spanish grows by 15% to 20% on average. On Facebook this is especially critical in two fields: the ad headline (27 visible) and the personal profile bio (101). A perfect 26-character English headline becomes 31-32 in Spanish, and Meta truncates it.
The practical rule: if you publish in Spanish, do not copy the English best-practice length. For engagement posts, the 40-80 English recommendation becomes 50-100 in Spanish. For ad headlines, the 27 in English drops to ~22-24 in Spanish if you want margin.
That is why a Facebook character counter is essential when working on bilingual creative: it lets you validate that both versions fit, not just one.
How to use our Facebook character counter
Paste your text
Type or paste your post, comment, ad or message into the box. The tool starts measuring instantly.
Check the 12 cards
Each card of the Facebook character counter shows characters used against the official limit. Pay special attention to the two "see more" cards (125 mobile and 477 desktop) and the Ads fields.
Copy and publish
When it fits, hit "Copy" and paste into Facebook or Meta Ads Manager. Everything runs in your browser: nothing leaves your device.
Who uses a Facebook character counter
A Facebook character counter is part of the daily workflow of any professional who uses the platform seriously.
Community managers
Verify every post and comment before publishing on behalf of the client.
Meta Ads advertisers
Headlines of 27, primary text of 125 and descriptions of 30 without truncation.
Local businesses
Optimized short description (155) and About section (255).
Marketplace sellers
Product titles and descriptions that do not truncate in the preview.
Reels creators
72-character descriptions for Reels ads.
Messenger support
Replies up to 20,000 characters without splitting messages.