Story Arcs

Ranma 1/2 can be broken into arcs, although much smaller than some manga, rarely reaching 12 chapters. Anime followed same rules, although adapted only 229 first chapters (of 407), often in different order, with major changes of the plot and completely original stories (so called "filler" episodes). List below will follow manga's order, but split into anime seasons will be applied as possible.

Split for seasons is left here for easier management purposes, however it's technically not applying to manga and due to changed order some arcs were in later seasons. Episodes are numbered by Total Broadcast Order (B#).

Introduction Arc
Chapters: 1-2

Episodes: 1

Tatewaki Kuno Intro Arc
Chapters: 3-7

Episodes: 2-5

Dr. Tofu Intro Arc
Chapters: 8-9

Episodes: 5-6

Ryoga Hibiki Intro Arc
Chapters: 10-16

Episodes: 7-10

Martial Arts Rhythmic Gymnastics Arc
Chapters: 17-22

Episodes: 11-13

Martial Arts Figure Skating Arc
Chapters: 23-30

Episodes: 14-16*

* Due to a combination of low ratings and several kidnappings occurring at the time, the episodes were released later, but official production order is 14-16

Shampoo Intro Arc
Chapters: 31-36

Episodes: 18-20

Neko-Ken Arc
Chapters: 37-41

Episodes: 23, half of 24

Full Body Cat's Tongue Arc
Chapters: 42-50

Episodes: half of 24, 25-27

Breaking Point Arc
Chapters: 51-55

Episodes: 29-30

Martial Arts Tea Ceremony Arc
Chapters: 56-58

Episodes: 93 and loosely 130*

* This arc was adapted much later in episodes of season 5 and 6.

Martial Arts Takeout Arc
Chapters: 59-62

Episodes: 22

Happosai Intro Arc
Chapters: 63-69

Episodes: 33, 38, 40, and loosely 76

Dojo Destroyer Arc
Chapters: 70-73

Episodes: 28

Romeo and Juliet Arc
Chapters: 74-77

Episodes: 39

Japanese Nanniichuan Arc
Chapters: 78-80

Episodes: 34-36*

* Anime version of the arc extends to 3 episodes, but only episode 34 adapts the manga, other two are filler. Also, due to arcs being in different order in anime, both filler episodes has continuity nods to "Mousse Returns Arc", which takes place later in manga continuity.

Akane vs Kodachi - Cookie Battle Arc
Chapters: 81-84

Episodes: 37

Ukyo Kuonji Intro Arc
Chapters: 85-91

Episodes: 41, 42

Amazon Love Pills Arc
Chapters: 92-94

Episodes: 53 (plus one scene in 55)

Mousse Returns Arc
Chapters: 95-99

Episodes: 31-32*

* This arc was adapted significantly earlier, taking place during 2 season, and gets references during the Japanese Nanniichuan Arc.

Tsubasa Kurenai Arc
Chapters: 100-102

Episodes: 45

Ryoga Goes Home Arc
Chapters: 103-105

Episodes: N/A

Happosai's Ultimate Technique Arc
Chapters: 106-108

Episodes: 44

Kairaishi Mushroom Arc
Chapters: 109-110

Episodes: 43

Super Soba Arc
Chapters: 111-113

Episodes: 47