Почему различие важно
US liquid quart and millilitre 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.
Пример
1 US qt = 946.352946 mL · 10 US qt = 9 463.52946 mL.
946.352946 mL