Bio limits by platform
These are the limits for the main profile text on each platform. Every character counts, including spaces, line breaks and emoji:
- TikTok bio: 80 characters
- Instagram bio: 150 characters
- Threads bio: 150 characters
- X (Twitter) bio: 160 characters
- LinkedIn headline: 220 characters
- Twitch bio: 300 characters
- Pinterest about: 500 characters
- YouTube channel description: 1,000 characters
Other profile limits worth knowing
Your bio isn't the only field with a limit. These trip people up when setting up or renaming a profile:
- Instagram: name 30 characters, username 30.
- TikTok: name 30 characters, username 24.
- X: display name 50 characters, username 15.
- Threads: uses your Instagram username, so the same 30-character limit applies.
- LinkedIn: About section up to 2,600 characters.
Why emoji can count as two
Under the hood, many emoji are built from more than one piece. A flag is two, an emoji with a skin tone is two, and some family emoji join five or more. You see one picture, but a computer may count several.
Most apps now count what you see, so an emoji is one character. Some forms and older tools still count the pieces. This checker shows both: the main count treats each emoji as one, and strict count shows the raw length. If your bio fits on strict count, it'll fit anywhere.
How to cut a bio down
When you're over, cut in this order: filler ("I'm a", "welcome to my page"), ideas you've said twice, then decoration. A middle dot (·) or a slash separates two ideas in one character, where " and " takes five.
Write the shortest version first. A bio that works in TikTok's 80 characters is easy to stretch for Instagram and X, but a long one is hard to cut down without losing its point.
Fitting the limit isn't the whole job. Look at the bio on your phone, too: short lines with a break between them read faster than one block that runs to the edge of the screen.
Limits change
Platforms adjust their limits now and then, and sometimes test longer bios with a few accounts first. If an app's own counter disagrees with this one, go with the app: it's the one that decides whether your bio saves.
Frequently asked questions
What's the Instagram bio character limit?
150 characters, including spaces, line breaks and emoji.
What's the TikTok bio character limit?
80 characters. It's the shortest of the major platforms, so write for TikTok first if you want one bio everywhere.
How many characters can an X (Twitter) bio have?
160 characters. Your display name can be up to 50 characters and your username up to 15.
Do spaces and line breaks count as characters?
Yes. Every space and every line break uses one character of your limit on all the platforms listed here.
Do emoji count as one character or two?
Usually one, but it depends on the app. Some emoji are built from several parts and count as more in older tools, so leave a few characters spare if you use a lot of them.