Bushel

A bushel is an imperial unit of dry volume, equal to 4 pecks or 8 gallons. It is most often used in agriculture. A bushel is abbreviated as bsh. or bu.
Since the volume of a gallon in UK has been defined as the volume of ten pounds of water, the volume of a bushel in SI units is 36.3687 litres.
The United States bushel is slightly smaller than the British bushel because the American gallon is smaller than the British gallon. Its volume has been defined as 2150.42 cubic inches, which makes 35.2391 litres.