It’s been reported not long ago by an European website that Rogue One would be 2h 13 minutes long but people weren’t sure if it was true, now I see sites that are reliable saying it’s 2h13 long so it definitely looks like it’s true. Allociné a French website about movies that is a kind of database indicates Rogue One is 2h13min, UGC a company of cinemas in France and the website of the Ellipse cinema are also reporting the same thing.
In terms of running time, it’s similar to The Force Awakens that is 2h15, Revenge of The Sith and Attack Of The Clones remain the longest one with 2h20 and 2h22.
Also other news about Rogue One, MakingStarWars has noticed for the US it has been Rated PG-13 for extended sequences of sci-fi violence and action, which is not surprising as TFA and ROTS were also rated PG-13. In France, it’s very different how movies are rated and just as the other Star Wars movies, Rogue One has been rated ‘Tous Publics’ which is PG, it has been confirmed by the website of the Ellipse cinema.