The Chinese character 畝 is also applied to the unit of acre which is used in the yard-pound system, and so, to make a distinction, the unit of the Chinese system is called shi mu in pinyin and the unit of the yard-pound system is called ying mu in pinyin.
また、ヤード・ポンド法のエーカーにも畝の字を宛てており、区別のため、前者を市畝（市亩）、後者を英畝（英亩）という。