Full name: barrel [US, beer]
Plural form: barrels
Category type: volume
Scale factor: 0.1173477658
The SI derived unit for volume is the cubic meter.
1 cubic meter is equal to 8.52167907231 barrel.
Valid units must be of the volume type.
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The definition of a US beer barrel is 31 US gallons (117.3 litres) based on tax laws.