Quart (US)
The US quart equals 2 pints or 32 fluid ounces (~946.353 milliliters). Its name derives from “quartus,” meaning one-fourth of a gallon. Quarts are used in cooking, beverage packaging, and household measures, providing a convenient medium-sized unit. The quart’s integration into the US customary system allows cooks and manufacturers to scale recipes and liquid volumes efficiently.
Teaspoon (US) (tsp)
The US teaspoon is a customary cooking unit equal to approximately 4.92892 milliliters. Its origin comes from traditional household spoons used for measuring spices and small quantities of liquid. The teaspoon has become a standard unit in American recipes, baking, and mixology, allowing for repeatable and accurate measurements. While small, it plays a critical role in precise culinary measurements and is often paired with tablespoons, cups, and other US volume units in recipes.