The short answer
1,301-2,500 characters is the measured sweet spot. AuthoredUp's study of 372,126 LinkedIn posts (September 2025 - February 2026) found posts in the 1,301-2,500 character range earn roughly 27% higher engagement than posts under 400 characters. But the truncation point is still the single most important number — LinkedIn hides everything after roughly 210 characters on desktop (about 140 on mobile) behind "see more," so your opening decides whether anyone reads the rest.
Benchmarks at a glance
From AuthoredUp's 372,126-post study (median engagement rate by post length):
| Metric | Value | Notes |
|---|---|---|
| Sweet spot (most posts) | 1,301-2,500 chars | ~27% higher engagement than short posts |
| Posts under 400 chars | 2.10% ER | The baseline — weakest length band |
| 1,301-2,000 chars | 2.61% ER | +27% vs short posts |
| 2,001-2,500 chars | 2.67% ER | Best-performing band |
| 2,501-3,000 chars | 2.62% ER | Still strong — no sharp drop at the cap |
| Desktop truncation | ~210 chars | The "see more" cutoff line |
| Mobile truncation | ~140 chars | Even less room before the fold |
| Total character limit | 3,000 chars | LinkedIn's hard cap per post |
Suggested length by post type
These per-format ranges are our editorial guidance (informed by the study above, not separately measured):
| Category | Suggested Range | Notes |
|---|---|---|
| B2B thought leadership | 1,400-1,800 chars | Essay format with clear structure |
| Case studies | 2,000-2,500 chars | Story arc needs room |
| Personal stories | 1,200-1,600 chars | Tight narrative works best |
| Hot takes / opinions | 600-1,000 chars | Shorter = punchier |
| How-to / tutorials | 1,600-2,200 chars | Steps need space |
| Data-driven insights | 1,000-1,400 chars | Numbers + takeaway |
| Product announcements | 400-800 chars | Keep it focused |
| Thought experiments | 1,800-2,400 chars | Longer ideas need development |
| Lessons learned | 1,200-1,600 chars | Story + takeaway arc |
| Industry observations | 800-1,200 chars | Observation + brief analysis |
The truncation rule (the most important one)
LinkedIn truncates posts at approximately 210 characters on desktop and about 140 on mobile (AuthoredUp's measurement). Anything beyond that is hidden behind a "see more" button. This means your opening characters have to do one job: make the reader hit "see more."
This is more important than total post length. A 2,000-character post with a great opening will outperform a 1,200-character post with a weak opening every time. Focus on the hook first.
Why 1,301-2,500 is the sweet spot
From AuthoredUp's analysis of 372,126 LinkedIn posts from personal profiles (September 2025 - February 2026):
- Under 400 characters: The weakest band — 2.10% median engagement rate. Short posts can work for hot takes, but on average they underperform.
- 1,301-2,000 characters: 2.61% median engagement — about 27% better than short posts. Long enough to develop a real idea.
- 2,001-2,500 characters: 2.67% median engagement — the best-performing band in the study. Room for storytelling and case studies.
- 2,501-3,000 characters: 2.62% — still strong. The study found no sharp engagement cliff near the cap; the old advice that long posts die past ~2,700 characters isn't supported by this data.
- Over 3,000: LinkedIn's hard cap. Don't try to cheat this.
Format matters as much as length
A 1,500-character wall of text will underperform a 1,500-character post with 4-5 paragraph breaks, short sentences, and visual rhythm. LinkedIn rewards scannable content — use line breaks, vary sentence length, and create visual "rest stops" every 3-4 sentences.
Use our character counter to get it right
Our free character counter tool shows you exactly where you land — with color-coded zones for the truncation point, the sweet spot range, and the hard cap.
How Heist generates posts at the right length automatically
Heist's platform playbooks know LinkedIn's optimal ranges and generate posts targeted at the sweet spot. The Brain also knows your historical best-performing posts and biases toward the length range that's actually worked for your audience — not just the platform average.