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 fluid ounce (fl oz) is a volume unit equal to approximately 29.574 milliliters, used to label beverages, cosmetics, and personal care products in the United States. Beverage cans, shampoo bottles, and skincare serums all display their contents in fluid ounces for American consumers. One fluid ounce equals exactly 1/128 of a US gallon or roughly 2 tablespoons.