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

Principal Kuno Intro Arc
Chapters: 114-119

Episodes: 64, parts of 96

Waterproof Soap Arc
Chapters: 120-124

Episodes: 61

Ultimate Weakness Moxibustion Arc
Chapters: 125-136

Episodes: 67-69

Ghost Cat Arc
Chapters: 137-138

Episodes: 72

Akane's Swimming Lessons - Principal Kuno Arc
Chapters: 139-140

Episodes: 107*

This arc was adapted much later, around season 5

Yotaro Arc
Chapters: 141

Episodes: 75

Mark of the Gods Arc
Chapters: 142-145

Episodes: 79-80

Santa's Disciples Arc
Chapters: 146

Episodes: N/A

Wishing Sword Arc
Chapters: 147-149

Episodes: 82

Gambler King Arc
Chapters: 150-153

Episodes: 85

Dragon's Whisker Arc
Chapters: 154-157

Episodes: 89-90

Hot Springs Obstacle Course Race Arc
Chapters: 158-164

Episodes:95

Martial Arts Dining Arc
Chapters: 165-172

Episodes: 105, 106

Ranma Engaged to Nabiki Arc
Chapters: 173-178

Episodes:110

SEASON 6

Cursed Scroll Arc
Chapters: 179

Episodes: 128

Pantyhose Taro Intro Arc
Chapters: 180-190

Episodes: 122-123

Watermelon Island Arc
Chapters: 191-193

Episodes: 121

Sauce of Ten Years Arc
Chapters: 194-198

Episodes: 131, 132

Octopus Trap Arc
Chapters: 199

Episodes: 130

Paper Dolls Arc
Chapters: 200

Episodes: 134

Pill of Obedience Arc
Chapters: 201

Episodes: 136

Shishi Hokodan vs Moko Takabisha Arc
Chapters: 202-207

Episodes: 141. 142

New Year's Cat Spirit Arc
Chapters: 208-209

Episodes: 143

Harumaki Arc
Chapters: 210

Episodes: 144

Tatewaki vs. Kodachi Arc
Chapters: 211-212

Episodes: 151

Cradle from Hell Arc
Chapters: 213-215

Episodes: 146

Sakura Mochi Arc
Chapters: 216-218

Episodes: 149

Martial Arts Cheerleading Arc
Chapters: 219-224

Episodes: 154-155

Nodoka Saotome Intro Arc
Chapters: 225-229

Episodes: 160, 161

Reversal Jewel Arc
Chapters: 230-233

Ova 1

Phantom Lingerie Arc
Chapters: 234

Pantyhose Returns Arc
Chapters: 235-238

Heron Island Arc
Chapters: 239-240

Violence of Cooking Arc
Chapters: 241

Ova 3

Fishing Pole of Love Arc
Chapters: 242-244

One-Punch Armor Arc
Chapters: 245

Ova 4

Musk Dynasty Arc
Chapters: 246-258

Hinako Ninomiya Intro
Chapters: 259-265

Ova 4

Ryugenzawa Arc
Chapters: 266-278

Ova 7-8

Hinako's Home Visit Arc
Chapters: 279-281

Lens of Invincibility Arc
Chapters: 282-284

Demon Dog Swimsuit Arc
Chapters: 285-286

Curséd Cave of Broken Loves Arc
Chapters: 287-288

Ova 10

Stolen Test Arc
Chapters: 289

Ryu Kumon Arc
Chapters: 290-299

Ranma's Tears Arc
Chapters: 300

Phoenix Sword Arc
Chapters: 301-302

Movie 3

Pink and Link Arc
Chapters: 303-307

Evil Oni Arc
Chapters: 308

Ova 9

Kinnosuke Kashao Arc
Chapters: 309-311

Akari Unryu Intro Arc
Chapters: 312-314

Hair Tonic Arc
Chapters: 315

Infinite Ki Arc
Chapters: 316-317

Cursed Cherry Tree Arc
Chapters: 318

Nodoka and Ranma's Cold Arc
Chapters: 319-321

Cursed Spatula Arc
Chapters: 322

Rakkyosai Arc
Chapters: 323-325

Ryoga's Lucky Day Arc
Chapters: 326-327

The Umbrella of Love Arc
Chapters: 328

Akane's Swimming Lesson - Hinako Arc
Chapters: 329

Noodle of Power Arc
Chapters: 330

Doll of Vengeance Arc
Chapters: 331-332

Ova 11

Aloha School Arc
Chapters: 333

Rouge Arc
Chapters: 334-338

White Lily Arc
Chapters: 339-340

Battle Dogi Arc
Chapters: 341-344

Densuke Arc
Chapters: 345

Angry Kasumi Arc
Chapters: 346

Mushrooms of Time Arc
Chapters: 347-349

Jizo Statue Arc
Chapters: 350-351

Horse Prayer Tablet Arc
Chapters: 352

Onsen Vacation Arc
Chapters: 353

Hayato Arc
Chapters: 354-355

Shotgun Bean Plant Arc
Chapters: 356

Valentine's Chocolate Arc
Chapters: 357

Repentance Room Arc
Chapters: 358-359

Battle of the Busts Arc
Chapters: 360-364

Incense of Spring Sleep Arc
Chapters: 365*

* This arc was adapted in "Nightmare! Incense of Spring Sleep" special, much later then other OVAs or movies.

Three-Year Smile of Death Arc
Chapters: 366

Cursed Mirror Arc
Chapters: 367-370

Playing House Arc
Chapters: 371

Konatsu Intro Arc
Chapters: 372-376

Tanabata Arc
Chapters: 377

Jellyfish Beach Arc
Chapters: 378

Meeting Akari Arc
Chapters: 379

Saotome Family Treasure Arc
Chapters: 380-384

Ranma Moves Out Arc
Chapters: 385

Pill Box Arc
Chapters: 386-387

Substitute Chef Arc
Chapters: 388

Jusendo Arc
Chapters: 389-407