The US quart (qt) is an imperial volume unit equal to one-quarter of a US gallon or exactly 0.9464 liters, commonly used in American cooking and grocery packaging. Motor oil containers and ice cream tubs in the United States frequently use quart measurements. One US quart equals exactly 2 US pints or roughly 32 US fluid ounces.

The US cup is a volume unit equal to 8 US fluid ounces or approximately 0.2366 liters, the standard measurement in American recipes and cookbooks. When a recipe calls for 'one cup of flour' or 'half a cup of sugar,' it refers to this specific volume, not a drinking vessel of arbitrary size. One US cup equals exactly 236.588 milliliters.