Updated
Limits by platform
- X: 280 characters for a standard post. Links count as 23, and emoji and most Chinese, Japanese and Korean characters count as 2.
- Threads: 500 characters.
- Bluesky: 300 characters.
- Instagram caption: 2,200 characters.
- Instagram bio: 150 characters.
- TikTok caption: 4,000 characters.
- LinkedIn post: 3,000 characters.
- Facebook post: 63,206 characters.
- YouTube title: 100 characters.
- YouTube description: 5,000 characters.
- Pinterest pin description: 500 characters.
The limit that matters more: the fold
Long captions are cut with a more link. On Instagram that happens after about 125 characters. On LinkedIn it is about 210.
Put the hook and any call to action before that point. Hashtags and details can go after it.
Count before you post
The character counter shows the length of your text for every platform above at once. It counts emoji as one character, the way people see them, and uses the weighted count for X. It also marks where Instagram and LinkedIn will cut the post.
Styled text uses up the limit too
Bold and italic letters made with Unicode are separate characters. They count like normal letters on most platforms, but X may count some of them as 2. Check the length after styling.