Key takeaways
- TikTok sets no maximum number of hashtags; hashtags and mentions count toward the caption.
- A video caption through TikTok’s API is up to 2,200 characters, counted in UTF-16 units.
- A photo post has a title of up to 90 characters and a description of up to 4,000.
- A few relevant hashtags describe a video better than a long list of broad ones.
On this page
How many hashtags can you use on TikTok?
As many as fit in the caption. TikTok publishes no hashtag count limit, unlike Instagram’s Help Center limit of 5 per post or YouTube’s 60. Every hashtag, including the # sign, uses caption space, so a few long hashtags cost as much as many short ones. Count a draft with the TikTok character counter.

What is the TikTok caption limit?
TikTok counts in UTF-16 units, so most letters count as one and many emoji as two. Hashtags (#) and mentions (@) inside the caption are recognised when separated by spaces or new lines.
| Post type | Field | Limit |
|---|---|---|
| Video | Caption (title), with hashtags and mentions | 2,200 UTF-16 characters |
| Photo | Title | 90 UTF-16 characters |
| Photo | Description | 4,000 UTF-16 characters |
How many hashtags should you use on TikTok?
Enough to say what the video is about: a tag or two for the topic, one for the niche or audience, and a branded one if you run a campaign. TikTok publishes no ideal number. Broad tags such as #fyp say nothing about the video. The TikTok hashtag generator suggests tags by topic, and the hashtag limits by platform page compares every network.
How does SkedCast check a TikTok caption?
The composer counts the caption the way TikTok does and stops a video caption over 2,200 characters before it can be scheduled. For a photo post, the caption’s first line becomes the title (up to 90 characters) and the rest the description. See the TikTok scheduler for formats and timing.
Sources
FAQ
- What is the maximum number of hashtags on TikTok?
- TikTok sets no maximum number; hashtags count toward the caption limit instead.
- What is TikTok’s caption character limit?
- 2,200 UTF-16 characters for a video caption through TikTok’s Content Posting API, including hashtags and mentions; a photo post has a 90-character title and a 4,000-character description.
- Do hashtags count toward the TikTok caption limit?
- Yes. Every character of a hashtag, including the # sign, counts the same as the rest of the caption.
- How many hashtags should I use on TikTok?
- A few relevant ones: the topic, the niche or audience, and a branded tag if you have one. TikTok publishes no ideal number.