公斤 (gōng jīn) means “kilogram (kg)”. It is an HSK 3 Chinese word in the HSK 3.0 vocabulary.
Practice each character:
我买了五公斤苹果。
Wǒ mǎi le wǔ gōngjīn píngguǒ.
I bought five kilograms of apples.
Updated: 2026-05-27