One Piece has been running for about 26–28 years, depending on whether you mean the manga or the anime.

How long has One Piece been running?

  • The manga began serialization in Weekly Shonen Jump in 1997, so as of 2026 it has been running for around 29 years.
  • The anime started airing in Japan in October 1999, so it has been running for about 26–27 years as of 2026.

In other words, One Piece has been an ongoing series since the late 1990s and is still continuing today.

Quick Scoop

Timeline at a glance

  • 1997: One Piece manga first appears in Japan.
  • 1999: One Piece anime premieres on Fuji TV in October.
  • 2000s–2020s: Manga and anime continue with only short breaks and hiatuses.
  • 2020s: The series passes 25 years of publication and heads into its final saga, but remains ongoing.

Why this is a big deal

  • Few long-running shonen titles stay in weekly serialization this long while keeping a single overarching story.
  • The anime has aired continuously since 1999 with hundreds of episodes and only limited filler, making it one of the longest-running mainstream anime series.

Mini FAQ

Q: Is One Piece finished?
A: No, as of 2026 both the manga and anime are still ongoing, though the creator has signaled the story is in its final major saga.

Q: What’s the simple answer to “how long has One Piece been running”?
A: Roughly “since 1997 for the manga and 1999 for the anime,” so close to three decades of continuous run.

Information gathered from public forums or data available on the internet and portrayed here.