A bushel and a peck are units of dry volume measurement. A bushel is equal to 32 quarts, while a peck is equal to 8 quarts, or a quarter of a bushel. A bushel is a measure of dry volume that varies in weight depending on the fruit or vegetable being measured. For instance, a bushel of peaches weighs about 48 pounds, a bushel of corn weighs about 35 pounds, and a bushel of tomatoes weighs about 53 pounds. A peck is also a measure of dry volume and is smaller than a bushel. To be specific, it is a quarter of the volume of a bushel. The weight of the fruit or vegetable in a peck varies depending on what it is.

In addition to their use as units of measurement, the phrase "a bushel and a peck" is also used idiomatically to emphasize large amounts. The phrase comes from the fact that bushels and pecks were standard forms of dry measurements in medieval England. The phrase is also the title of a popular song from the musical "Guys and Dolls".