We all know about Twitter's 140-character limit (which has been relaxed slightly in recent months) - but is 140 characters really the optimal amount of characters for a post on Twitter? What about on other social networks? To find out the optimal length for a social media post, I scoured the research to see if there were any definitive answers to which post lengths got the most engagement. The update length limit varies by the social media network, and while only Twitter has stringent, short character limits, I found that just because you can write more extensively doesn't necessarily mean you should.
Ideal post lengths for social media networks:
- Twitter: Twitter was where it all started in terms of artificially shortening posts as part of the design of the network - 140 characters was the limit from the start. However, if you can be even briefer, so much the better. Buddy Media found that tweets with less than 100 characters performed 17% better than longer posts.
- Facebook: Of the big three social networks, Facebook allows the most space for text in updates (a staggering 63k+ characters!), despite this, the best-received Facebook posts have less an 80 characters, according to Jeff Bullas (though it is even better to try to cut your posts to less than 40 characters, no small feat). Facebook shows that just because there is a lot of real estate doesn't mean you should use necessarily it.
- Instagram: On Instagram the focus is the visual, so Sprout Social recommends you keep your captions short and sweet - between 138-and 150 characters, even though the max allowed is 2,200 characters. But even shorter may be better: Instagram itself specifies that that only the first 3 lines of a caption are shown in feeds, a limit of 125 characters.
What can we learn from these findings? Overall, shorter posts/updates are better. This clever infographic below from Buffer and SumAll illustrates the optimal length for various social media networks. When you are in the process of writing your own social media updates, Sprout Social also has a great social media post character counter to keep you in line. The infographic below also covers optimal headline length, number of hashtags and blog post length, which I will cover in a future post.