|Height||144 cm (4'8½")|
|Weight||33 kg (73 lbs.)|
|Affiliation||Gotei 13, Soul Society|
|Base of Operations||13th Division HQ & Kuchiki Manor, Seireitei, Soul Society; formerly Kurosaki House, Minamikawase, Karakura Town, Human World|
|Relatives||Hisana Kuchiki (Sister, deceased)
Byakuya Kuchiki (Brother-in-law/Adoptive Brother, deceased) Ginrei Kuchiki (Adoptive Grandfather) Kōga Kuchiki (Adoptive Granduncle, deceased) anime only
Short and petite, Rukia has light skin, violet-colored eyes and black hair, with several strands of hair always hanging between her eyes. Byakuya has commented that she strongly resembles her sister, Hisana Kuchiki. As a Shinigami of the Gotei 13, Rukia wears a standard Shihakushō. Sometime after Aizen's defeat, Rukia has her hair cropped into a bob that hangs about her face. She wears fingerless white tekkou that are similar to Byakuya's that extend to above her elbows. As a lieutenant, she wears her Division Badge around her uniform's left sleeve, which has been shortened to just reach her upper arm.
Initially born into a lower class, Rukia retains her modesty even as an adopted member of the nobility. She is graceful and "clean", yet chooses to talk to ordinary people. However, her cool and lone demeanor often forces her to hide her personal troubles even from her friends. According to Ukitake, Rukia never opens up her heart and has difficulty making friends. Rukia is clueless about the ways of the modern Human World. She is an accomplished actress, being able to act her way through a number of tough situations, such as getting out of trouble with school teachers or convincing the Kurosakis to let her stay at their house. Rukia always has trouble finding clothes that fit her, especially when inhabiting a Gigai in the Human World, leading to her stealing clothes from Ichigo's sister, Yuzu. She likes to climb to high places. Rukia also likes everything that is rabbit-themed or resembles a rabbit. She becomes quite sensitive when someone insults her obsession with rabbits. People often have difficulty understanding her drawings, which are typically rabbit-like. She also doesn't like when someone complains about their quality. Rukia's favorite foods are cucumber, eggs and rice dumplings.