UK Barrels
A UK barrel is 36 imperial gallons (not to be confused with American gallons), about 163.659 liters or 0.163659 cubic meters. It is based on the traditional wine barrel used in the United Kingdom.
US Dry Barrels
A US dry barrel is a unit of volume measurement normally used in the United States for dry goods such as grains, fruits, and vegetables. One US dry barrel is about 115.628 liters or 0.1156 cubic meters.
To convert this unit please visit: US dry barrel conversions.
Note that there are many types of barrel so be sure to choose the correct one for your needs.