A peck is a unit of measurement used for dry volume, primarily in the United States. It is equivalent to 8 dry quarts or about 9 liters. The peck is often used in agriculture to measure quantities of fruits and vegetables, such as apples or corn. Historically, the peck has roots in the English system of measurement and is part of a larger set of units that includes the bushel. A bushel is equal to 4 pecks, making it a convenient way to quantify larger amounts of produce. The peck is not commonly used in everyday measurements today.