TikTok character limits
- Video caption: 4,000 characters, including hashtags.
- Bio: 80 characters.
- Username: 24 characters, letters, numbers, underscores and periods.
- Comment: 150 characters.
Free tool
TikTok caption character counter
Type or paste your caption, bio or username and see the character count against TikTok's limits as you type, plus how many hashtags and mentions you used.
Free tool
Count your TikTok characters
0 characters.
Why the first line matters
Only the first line or two of a caption shows on the video before viewers tap more. Put the hook and the main keyword there, because TikTok search reads captions too.
How many hashtags to use
Three to five specific hashtags usually beat a wall of generic ones. They help TikTok understand the topic, but the video itself decides reach.
FAQ
What is the TikTok caption limit?
4,000 characters, including hashtags and mentions.
What is the TikTok bio character limit?
80 characters.
Do hashtags count toward the TikTok caption limit?
Yes. Every character in the caption field counts, hashtags included.