Quick Answer
Facebook posts allow up to 63,206 characters. For best engagement, keep posts under 80 characters. Ad headlines are capped at 40 characters (recommended).
Check Your Character Count
Paste your Facebook post or ad copy into our free word counter tool to check character count before publishing. No sign-up needed.
Frequently Asked Questions
What is the Facebook post character limit?
Facebook allows up to 63,206 characters per post. However, posts under 80 characters typically receive the most engagement.
What is the Facebook ad character limit?
Facebook recommends 40 characters for headlines, 125 characters for primary text, and 30 characters for descriptions. These are recommendations — you can write more, but it gets truncated.
How long can a Facebook comment be?
Facebook comments can be up to 8,000 characters long.
What is the ideal Facebook post length?
For engagement, posts between 40–80 characters tend to perform best. For storytelling or thought leadership, 200–500 characters can also work well with good formatting.
What is the Facebook bio character limit?
Your personal Facebook bio (Intro section) is limited to 101 characters. Facebook Business Page descriptions are limited to 255 characters.
Where this data comes from
The sources and check dates in this table come from one versioned data file — the place we record every check we make. The rest of this page, and the limits built into our tools, are still separate copies, so when we correct a figure we correct it in each place. This table is how we keep ourselves honest while we do.
We have not verified these figures yet
Every figure on this page was carried across from our own older pages. Not one of them has been checked against the platform’s own documentation, so none of them carries a source or a last-checked date. We would rather show you that plainly than print a date we have not earned.
Still to be checked against: Facebook Help Centre (facebook.com/help) and the Meta Ads Guide (facebook.com/business/ads-guide)
| Field |
Limit |
Notes |
Source |
Last checked |
| Post |
63,206 |
Maximum technical limit for feed posts |
No source recorded |
Not yet verified against the platform’s own documentation |
| Comment |
8,000 |
Maximum per comment |
No source recorded |
Not yet verified against the platform’s own documentation |
| Bio (Intro) |
101 |
The short intro on your personal profile |
No source recorded |
Not yet verified against the platform’s own documentation |
| Page Description |
255 |
For Facebook Business Pages |
No source recorded |
Not yet verified against the platform’s own documentation |
| Page About |
100 |
Short description shown prominently |
No source recorded |
Not yet verified against the platform’s own documentation |
| Username |
50 |
Your Facebook profile username |
No source recorded |
Not yet verified against the platform’s own documentation |
| Ad Headline |
40 |
Recommended; can be longer but gets truncated |
No source recorded |
Not yet verified against the platform’s own documentation |
| Ad Primary Text |
125 |
Recommended visible text before "See More" |
No source recorded |
Not yet verified against the platform’s own documentation |
| Ad Description |
30 |
Recommended; shown below headline |
No source recorded |
Not yet verified against the platform’s own documentation |
| Event Name |
64 |
Title of a Facebook Event |
No source recorded |
Not yet verified against the platform’s own documentation |
| Group Description |
3,000 |
For Facebook Group descriptions |
No source recorded |
Not yet verified against the platform’s own documentation |
| Messenger |
20,000 |
Per individual message |
No source recorded |
Not yet verified against the platform’s own documentation |
