Dry capacity

Dry measures are units of volume used to measure bulk commodities which are not fluids, which were typically shipped in and sold by standardized containers such as barrels. They are typically used in agriculture, agronomy, and commodity markets to measure grain, dried beans, dried and fresh fruit, clams, and crabs. They were formerly used for many other foods, such as salt pork and salted fish, and for industrial commodities such as coal, cement, and lime.

Today, many units nominally of dry measure have become standardized as units of mass (see bushel); and many other units are commonly conflated or confused with units of mass.

In the original metric system, the unit of dry volume was the stere, equal to a one-meter cube, but this is not part of the modern metric system; the liter and the cubic meter are now used. However, the stere is still widely used for firewood.

In US customary units, most units of volume exist both in a dry and a liquid version, with the same name, but different values: the dry hogshead, dry barrel, dry gallon, dry quart, dry pint, etc. The bushel and the peck are only used for dry goods. Imperial units of volume are the same for both dry and liquid goods. They have a different value from both the dry and liquid US versions.

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