You can find all the Lord of the Rings movies in chronological order (you can see the length of the movie in minutes in the parentheses) https://www.imdb.com/list/ls072068350
- The Lord of the Rings: The Fellowship of the Ring – extended release, 2001 (218 minutes)
- The Lord of the Rings: The Two Towers – extended release, 2002/ (223 minutes)
- The Lord of the Rings: The Return of the King – extended release, 2003 (251 minutes)
This is 692 minutes which is 11 hours and 32 minutes. So if you want to watch all the Lord of the Rings movies (extended release), then you need almost half a day not counting any breaks between the films. Click here if you want to know how long does it take to watch all the Lord of the Rings movies (original version).