Konata's appearance is rather child-like, as she has a petite physique, is short. She has very long, shiny, messy blue hair that reaches her calves, and green sleepy eyes. A large ahoge, a split lip that gives her a catlike smile, and a small mole under her eye.

Konata wears a classic Japanese girl school uniform, consisting of a white shirt with long sleeves, a pink sailor-style collar and a pink skirt with a horizontal whiteline, black socks and brown shoes.