Word Count Guidelines for Social Media Platforms
Every platform has a different reader and a different context. Writing the right length isn't just about character limits — it's about understanding where posts get cut off, what readers actually finish, and where longer content earns its keep.
The two numbers that matter
For any platform, you need to know two figures: the hard limit (where the platform stops accepting text) and the truncation point (where the platform hides text behind a "see more" tap). The truncation point is the practical limit for most posts — most readers don't tap to expand, so anything beyond that point is read by a fraction of your audience.
Platform-by-platform guidelines
- Twitter / X — 280-character hard limit (~40–55 words). No soft truncation in feed. Every character is visible, so every word must earn its place.
- Facebook — 63,206-character limit, truncated at ~477 characters on desktop, ~310 on mobile. Aim for under 80 words to stay above the truncation.
- LinkedIn — 3,000-character limit, truncated at ~210 characters in feed. Best engagement at 150–300 words. Articles support up to 125,000 characters.
- Instagram — 2,200-character caption limit, truncated at ~125 characters. Hashtags count toward the total; up to 30 allowed.
- Pinterest — pin descriptions up to 500 characters. The first 50–60 characters show in grid view; the rest require a click.
- Threads — 500-character limit per post (~80–90 words). No truncation.
Writing for truncation
The strongest social media posts front-load the most compelling content. Your first sentence should be capable of standing alone — if someone reads only that and scrolls, they should still have gotten something of value. Everything after the truncation point is bonus content for engaged readers, not load-bearing structure.
To check word and character counts before posting, paste your draft into the word counter for a word count, or the character counter when you're working within a tight character limit like Twitter/X or Threads.
When longer posts work
LinkedIn is the exception to the short-is-better rule. Posts that deliver a complete insight — a lesson learned, a process explained, a perspective argued — consistently outperform short teaser posts that just link to other content. Readers reward posts that don't make them click away. Aim for 150–300 words and make the whole post the value, not a preview of value.
Frequently asked questions
What is the ideal word count for a Facebook post?
Facebook posts perform best at 40–80 words for organic reach. The platform truncates posts at around 477 characters on desktop and 310 on mobile before showing a "see more" link. For most posts, writing under 80 words keeps the full message visible without requiring an extra tap.
What is the word count for a LinkedIn post?
LinkedIn posts can be up to 3,000 characters. The feed truncates at roughly 210 characters, so your first sentence carries the most weight. Posts between 150–300 words tend to generate the strongest engagement — enough depth to be worth reading, short enough to read in under two minutes.
What is the ideal post length on social media?
Ideal post length varies by platform. Twitter/X: under 280 characters (roughly 40–50 words). Facebook: 40–80 words. LinkedIn: 150–300 words. Instagram: 138–150 words in the caption. Pinterest: 100–200 words for pin descriptions. In all cases, lead with your most important point — most readers won't tap to expand.
What is the Twitter word count?
Twitter/X has a 280-character limit per tweet, which works out to roughly 40–55 words depending on word length. URLs count as 23 characters regardless of their actual length. Images, videos, and polls don't count toward the character limit. Tweets under 100 characters historically receive more engagement than longer ones.