And when we weigh 1 ryo with the standard of Sui Dynasty China in "History of Chinese Weights and Measures," written by Wu Chengluo, the value was 41.762 grams, which was about three times as much as the previously-mentioned weight with chia-liang, and with the standard of the Tang Dynasty, 1 ryo weighed at 37.301 grams which equivalent to 1 'larger ryo.'
呉承洛の『中国度量衡史』による隋代の1両は41.762グラムであり嘉量の約3倍、唐代の1両は37.301グラムであり、「大両」に相当する。