How many chapters does Vagabond have?
327 chapters, of which 322 are in books and five are not.
The count has two halves, and collectors need both. Chapters 1 through 322 are collected in the 37 tankobon volumes, Japan 1999 to 2014, English 2002 to 2015. Chapters 323 through 327, the Hosokawa arc that begins the endgame, ran in Weekly Morning in 2015 and have never been collected into any volume, in any language, to this day.
The last of them, chapter 327, "The Man Named Tadaoki," appeared on May 21, 2015. The arcs below account for every chapter, including the five that live only in the magazine.
THE ARCS
327 chapters in ten movementsTakezo arc · Chapters 1-21
Volumes 1-2. Sekigahara, the wild boy, Takuan's renaming.
First Yoshioka arc · Chapters 22-35
Volumes 3-4. Kyoto, and the challenge to the great school.
Hozoin arc · Chapters 36-78
Volumes 4-8. The spear monks of Nara, and Inshun.
Yagyu arc · Chapters 79-105
Volumes 9-11. The old master Sekishusai, and the meaning of strength.
Baiken arc · Chapters 106-127
Volumes 11-13. The chain and sickle, and a death that changes Musashi.
Kojiro arc · Chapters 128-179
Volumes 13-20. The deaf swordsman's life, told whole.
Second Yoshioka arc · Chapters 180-258
Volumes 21-27. The return to Kyoto, and the seventy.
Wandering arc · Chapters 259-286
Volumes 28-32. Aftermath, Ittosai, and the road east.
Farming arc · Chapters 287-322
Volumes 32-37. Rice, soil, and putting the sword down in the fields.
Hosokawa arc · Chapters 323-327
Uncollected. Kokura and Lord Tadaoki. Magazine only, since 2015.