For other uses, see
Liang.
Liang (simplified Chinese: 两; traditional Chinese: 兩; pinyin: liǎng), or leung in Cantonese, also called "Chinese ounce" or "tael", was a traditional Chinese unit of currency measurement.
In China, there were many different weighting standards of liang currency depending on the region or type of trade. In general, the silver liang weighed around 40 grams (1.3 ozt). The most common government measurement was the Kuping (庫平; kùpíng; 'treasury standard') liang, weighing 37.5 grams (1.21 ozt). A common commercial weight, the Caoping (漕平; cáopíng; 'canal shipping standard') liang weighed 36.7 grams (1.18 ozt) of marginally less pure silver.