Por que a distinção importa
Imperial quart and US teaspoon 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 = 230.582385697 US tsp · 10 imp qt = 2 305.82386 US tsp.
230.582385697 US tsp