Social Media Character Limits at a Glance (2026)
Knowing the character limits for each social platform helps you craft posts that display perfectly — no awkward cutoffs, no wasted space. Here's every limit you need to know, plus the lengths that actually get the best engagement.
| Platform | Max Characters | Best Length |
|---|---|---|
| Twitter/X Post | 280 (free) / 25,000 (Premium) | 71–100 chars |
| Instagram Caption | 2,200 | 138–150 chars |
| Instagram Bio | 150 | 130–150 chars |
| Facebook Post | 63,206 | 40–80 chars |
| LinkedIn Post | 3,000 | 1,200–1,500 chars |
| LinkedIn Headline | 220 | 120–160 chars |
| TikTok Caption | 4,000 | 100–150 chars |
| YouTube Title | 100 | 60–70 chars |
| YouTube Description | 5,000 | First 150 chars visible |
| Pinterest Pin | 500 | 150–200 chars |
| Threads Post | 500 | 200–300 chars |
Twitter/X: Beyond the 280 Character Limit
The classic 280-character limit still applies to free accounts, but X Premium subscribers can post up to 25,000 characters. However, longer isn't always better:
- Under 100 characters: 17% more engagement than longer posts
- With images: 150% more retweets than text-only posts
- Threads: Use multiple tweets for longer thoughts — break at natural stopping points
- Hashtags: 1-2 hashtags perform best; more than 2 reduces engagement
Twitter/X Character Limits by Element
| Element | Character Limit |
|---|---|
| Tweet | 280 |
| Display Name | 50 |
| Bio | 160 |
| DM | 10,000 |
| Poll Option | 25 |
Instagram: Captions That Convert
Instagram allows up to 2,200 characters per caption, but only the first ~125 characters show in the feed without tapping "more." This means your hook has to land fast.
- First line matters most: Use it as a hook — ask a question, make a bold claim, or tell a micro-story
- Long captions can work: Educational and storytelling captions (800-1,200 chars) perform well for engagement
- Hashtags: Place in first comment or at the bottom — 5-10 relevant hashtags
- Line breaks: Use periods or special characters to create spacing for readability
LinkedIn: Professional Posts That Get Seen
LinkedIn's algorithm favors posts that keep users on the platform. Here's how to optimize:
- Sweet spot: 1,200-1,500 characters for optimal engagement
- "See more" trigger: LinkedIn cuts off posts at ~210 characters on desktop — use this as a hook
- Format matters: Short paragraphs (1-2 sentences), line breaks between paragraphs
- No external links in post: LinkedIn deprioritizes posts with links. Put links in comments instead
LinkedIn Character Limits by Element
| Element | Character Limit |
|---|---|
| Post | 3,000 |
| Headline | 220 |
| Summary/About | 2,600 |
| Article Title | 100 |
| Article Body | 120,000 |
| Company Name | 100 |
YouTube: Titles and Descriptions That Rank
YouTube is the world's second-largest search engine. Getting your title and description right is crucial for discoverability.
- Title: Keep under 60 characters to avoid truncation in search results
- Description first line: The first ~150 characters appear above the fold — include your main keyword
- Description full: Use all 5,000 characters for SEO. Include timestamps, links, and relevant keywords
- Tags: While less important now, use relevant tags in the first 150 characters
Email Subject Lines: The 30-Character Rule
Email subject lines are where character count matters most. A few characters too many and your message gets cut off on mobile:
- Mobile displays: ~30 characters (varies by device)
- Desktop displays: ~60 characters
- Optimal length: 30-50 characters for highest open rates
- Preheader text: Use 40-100 characters to complement (not repeat) the subject
| Element | Display Limit | Optimal |
|---|---|---|
| Subject Line | 60 chars (desktop) | 30–50 chars |
| Preheader | 100 chars | 40–100 chars |
| From Name | 20-30 chars | Keep short |
Tools for Writers and Content Creators
Whether you're crafting social media posts or long-form content, having the right tools makes the job easier.
Rocketbook Smart Reusable Notebook
Write, scan, erase, repeat. Perfect for drafting content ideas on the go.
2026 Weekly Planner
Plan your content calendar across all platforms. Batch-create posts for maximum efficiency.
Pilot G2 Premium Gel Pens (12-Pack)
Smooth-writing pens for brainstorming sessions and content drafts.
Quick Character Count Reference
Copy your text and paste it into our Character Counter to get instant counts. Here are common limits you'll hit:
- Meta description: 155-160 characters
- Title tag: 50-60 characters
- Open Graph title: 60-90 characters
- Alt text: 125 characters max
- URL slug: 3-5 words ideal
- Google Ads headline: 30 characters
- Google Ads description: 90 characters