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How many characters can a comment to a post have on Facebook? Note that I'm not referring to a status update or a root post in a group but to the comments.

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3 Answers 3

up vote 3 down vote accepted

Great question, though there doesn't appear to be any definitive answer. I think @1kenthomas 's answer is better than the accepted one, as there was (presumably) an attempt to obtain empirical evidence.

So, I've done a series of manual tests as of a few minutes ago, and the result was exactly 7,897 characters was the limit. Even one character more causes Facebook to reject it.

Facebook message on limit

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I can’t find an official source, but according to this website, the size of a Facebook comment is unlimited.

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I'm able to post about 1 page-- about just under 2000 characters. 3000 fails at the moment.

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