How many characters can an Instagram caption have?
2,200 characters, including spaces, emoji and hashtags. Only about the first 125 show before "more", so the first line has to work on its own.
The limits for captions on each platform:
| Platform | Caption limit |
|---|---|
| 2,200 characters, up to 5 hashtags | |
| TikTok | 2,200 characters for videos |
| Threads | 500 characters |
| X | 280 (25,000 with Premium) |
| Bluesky | 300 |
| 63,206 | |
| YouTube | 100 for the title, 5,000 bytes for the description |
On every platform the visible part is much shorter than the limit. Put the point, or the "comment the keyword" line, in the first sentence.
Sources
Checked October 14, 2026. Platforms change their rules; tell us at contact if something here is out of date.