Por que a distinção importa
Imperial quart and US liquid pint 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.
Exemplo
1 imp qt = 2.40189985101 US pt · 10 imp qt = 24.0189985101 US pt.
2.40189985101 US pt