为什么必须区分
Imperial quart and US cup belong to measurement conventions that may look familiar but are not always equivalent across countries. Mendeleev.com therefore keeps the system name next to the abbreviation and calculates from defined conversion factors rather than rounded kitchen rules.
示例
1 imp qt = 4.80379970202 US cup · 10 imp qt = 48.0379970202 US cup.
4.80379970202 US cup