characters.
Users tweeting in Chinese, Japanese and Korean will still have the original limit. That's because writing in those languages uses fewer characters.
The company says 9 per cent of tweets written in English it the 140-character limit. People end up spending more time editing tweets or don't send them out at all.
Twitter hopes that the expanded limit will get more people tweeting more, helping its lackluster user growth.
Twitter has been testing the new limit for weeks and is starting to roll it out on Wednesday.
The company has been slowly easing restrictions to let people cram more characters into a tweet. It stopped counting polls, photos, videos and other things toward the limit.
Even before it did so, users found creative ways to get around the limit. This includes multi-part tweets and screenshots of blocks of text.
Twitter's character limit was created so that tweets could fit into a single text message, back when many people were using texts to receive tweets. But now, most people use Twitter through its mobile app; the 140-character limit is no longer a technical constraint but nostalgia.