As one of the longest-running anime series ever, it would take hundreds of hours to watch all ofOne Piece.Adapted by Toei Animation from the manga written and illustrated by Eiichiro Oda,One Piecedebuted in 1999 and is still running over two decades later. With over a thousand episodes across 21 seasons so far, watching all ofOne Pieceback-to-back would take days - though it’s a challenge many fans of Monkey D. Luffy and the Straw Hats would happily undertake.
TheOne Piecemanga, which started in 1997 and is also still ongoing, contains 110 volumes so far. The anime series follows the on-page adventures of the Straw Hates closely, with the story having evolved far beyond its original scope of Luffy striving to become the King of the Pirates. The saga has expanded to cover 1,122 episodes between 22-24 minutes long each, so watching all ofOne Piecewould require literal weeks.
5 Lessons Every One Piece Fan Needs To Take To Heart
One Piece excels not only in delivering an exciting and adventurous tale but also in imparting heartfelt life lessons.
The One Piece Anime Is Over 411 Hours Long
It Would Take Over Two Weeks To Watch All Of One Piece
It would take over 411 hours to watch every single episode ofOne Pieceback to back.This is a conservative estimate too, as it’s calculated based on each episode being 22 minutes (and some stretch to around 24 to 25). The 1,122 episodes ofOne Pieceso far account for 24,684 minutes of swashbuckling anime adventure, which is just over 411 hours. Since some episodes are longer, however, it’s likely longer.
1
61
2025-08-08
2
16
352/5.8
3
15
330/5.5
4
38
836/13.9
5
13
286/4.7
6
52
1144/19
7
33
726/12.1
8
35
770/12.8
9
73
2025-06-26
10
45
990/16.5
11
26
572/9.5
12
14
308/5.1
60
1320/22
62
2025-07-18
50
2025-07-25
17
118
2025-08-16
18
36
792/13.2
19
109
2025-06-18
20
197
2025-06-11
21
34
748/12.4
*Presuming a 22 minute episode length.
Any fans wanting to embark on a back-to-backOne Pieceviewing marathon would need provisions, as it would take around two and a half weeks to complete (and that’s not factoring in breaks for eating and sleeping etc).One Piececould be played continuously 24 hours a day for 17 straight days and would still not be finished.If viewers were to watch for 8 hours a day, the length of a standard working shift at a 9-5, it would take around 51 days to watch theOne Pieceanime from East Blue (season 1) to Egg Head (season 21).
How Many Hours Netflix’s One Piece Will Be If It Follows The Anime
The Live-Action One Piece Has A Lot Of Ground To Cover
The Netflix live-actionOne PieceTV series arrived in 2023, and is pretty close to the anime in terms of its story. However, this accuracy comes with a challenge for the streaming service. With so much story to adapt it’s difficult to imagine how Netflix will bring the entirety of theOne Piecestory to live-action, and how long it would take.
The live-actionOne Piececovers most of the East Blue saga (season 1 of the anime) in 8 hour-long episodes. Season 1 of the anime covered a little more of the same story in 61 episodes, meaning thatthe NetflixOne Piecemanages to (roughly) condense 7.5 episodes of the anime into each live-action one.
While it’s not an exact adaptation, this figure can be used to loosely work out how long the live-actionOne Piecewill have to be to cover the anime.If each live-actionOne Pieceepisode covers 7.5 animated ones, and there are 1,122 in the anime, then Netflix’s adaptation will have to be at least 149 episodes long.
The live-actionOne Piecewould have to include 149 hours of high-budget screen time (at the absolute minimum) to followeverything in theOne Pieceanimeand stretch to over 18 seasons. If Netflix does follow theOne Pieceanime through in its entirety then the live-action version would likely become the longest-running (and most expensive) show the streaming platform has ever put out.
One Piece
Cast
The One Piece anime began in 1999 and follows the adventures of Monkey D. Luffy, a boy with rubber-like abilities, as he embarks on a journey to find the legendary treasure “One Piece.” Inspired by the pirate Shanks, Luffy aims to become the King of the Pirates, accompanied by a diverse crew.
