Full name: barrel [US, petroleum]
Plural form: barrels
Category type: volume
Scale factor: 0.1589872956
The SI derived unit for volume is the cubic meter.
1 cubic meter is equal to 6.2898107438466 barrel [US, petroleum].
Valid units must be of the volume type.
You can use this form to select from known units:
This unit is used in North America for crude oil or other petroleum products. Elsewhere oil is more commonly measured in cubic metres (m³) and less commonly in tonnes. The Standard Oil Company shipped its oil in barrels that always contained exactly 42 U.S. gallons.