- 数量级 shùliàngjí order of magnitude(math.) order of magnitude
- 数量词 shùliàngcí numeral-classifiernumeral-classifier compound (e.g. [[一次|一次|yi1 ci4]], [[三|三|san1]][[套|套|tao4]], [[五|五|wu3]][[本|本|ben3]] etc)
- 代数量 dàishùliàng algebraic quantity
- 数量分析 shùliàngfēnxī quantitative analysis
- 数量积 shùliàngjī scalar productthe scalar product of vectors