Por que a distinção importa
cubic foot and US liquid quart 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 ft³ = 29.9220779221 US qt · 10 ft³ = 299.220779221 US qt.
29.9220779221 US qt