Notes on limits
- X (Twitter): standard posts allow 280 characters; links and some characters are weighted differently by the platform.
- SMS: 160 characters fit one message with the standard GSM-7 alphabet. Emoji or some accented letters switch the message to Unicode, where one segment holds 70 characters.
- Instagram: captions allow up to 2,200 characters.
Frequently asked questions
Do spaces count as characters?
Yes, in almost every limit. We also show the count without spaces.
Sources
Last reviewed 2026-10-14.