Cup measurement is a standard way to quantify ingredients in cooking and baking. A cup is a unit of volume commonly used in the United States, equivalent to 8 fluid ounces or about 237 milliliters. Measuring cups come in various materials, such as glass, plastic, or metal, and are often marked with measurement lines for accuracy. When using cup measurements, it's important to differentiate between dry and liquid ingredients. For dry ingredients like flour or sugar, a level cup is typically used, while liquid ingredients are measured in a liquid measuring cup, which usually has a spout for easy pouring. Accurate measurements ensure consistent results in recipes.