TikTok character counter
TikTok captions allow up to 4,000 characters, and bios are capped at 80. Use the live counter below to check a caption, bio, username, or comment against its 2026 limit.
Only the first line or two shows before the more link, so lead with the hook and any keyword you want found in search.
Does caption length affect reach?
Length itself is not a ranking signal, but the words are. TikTok reads your caption for search, so a clear, keyword-rich first line helps the right people find the video days and weeks after you post. Because only the first line or two shows before the more link, that opening is doing double duty: it is your hook in the feed and your metadata in search.
So the useful move is not to max out all 4,000 characters. Lead with a specific, searchable hook, add just enough context to earn the tap, and keep hashtags to a tight, relevant few. A wall of tags or filler text does not lift reach, and it can bury the line that actually matters.
FAQ
How many characters can a TikTok caption be?
TikTok captions allow up to 4,000 characters, which is plenty for a hook, some context, and a call to action. Only the first line or two shows before the more link, so lead with the words that earn the tap.
How long can a TikTok bio be?
TikTok bios are capped at 80 characters. That is tight, so cut straight to who you help and one reason to follow or tap your link.
What is the TikTok username character limit?
TikTok usernames can be up to 24 characters and can use letters, numbers, underscores, and periods. Shorter is easier to say in a video and easier for people to find in search.
How many characters can a TikTok comment be?
TikTok comments are limited to 150 characters, so replies stay short. If you need to say more, split it across a couple of comments or pin a longer note as a video reply.
Does caption length affect reach on TikTok?
Length itself is not a ranking factor, but the words are. TikTok reads your caption for search, so a clear, keyword-rich first line helps the right people find the video. Padding the caption with filler or a wall of hashtags does not help.
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