Barrel (oil) conversions

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Convert barrels (oil) to

The barrel (oil) conversion selector on this page selects the volume measurement unit to convert to starting from barrels (oil) (bbl). To make a conversion starting from a unit of volume other than barrel (oil), simply click on the "Reset" button.

What is barrel (oil)?

The petroleum barrel (or barrel (oil)) is a unit of volume or capacity equal to 0.158987295 cubic meters (1 bbl = 0.158987295 m³), the derived unit of volume in the International System of Units (SI). It is also equal to 158,987.295 cubic centimeters (cm³), or 1.58987295x10-4 cubic decameters (dam³) or 1.58987295x10-10 cubic kilometers (km³) (units of volume in the SI), or 158.987295 liters (L), or 15.8987295 decaliters (daL), or 1.58987295 hectoliters (hL) or 0.158987295 kiloliters (kL), which are units of volume in the metric system.

The barrel definition varies depending on the system of units used, as follows:

  • The US fluid barrel or barrel (US fluid), equal to 31.5 US liquid gallons or 0.119240471 cubic meters
  • The US dry barrel or barrel (US dry), equal to 26.25 US dry gallons or 0.115628199 cubic meters
  • The Imperial barrel or barrel (UK), equal to 36 UK gallons or 0.16365924 cubic meters
  • The petroleum barrel or barrel (oil), equal to 42 US liquid gallons or 0.158987295 cubic meters

The oil barrel is used as a unit of volume or capacity for crude oil and other petroleum products. In the United States, the oil production is expressed in oil barrels of 42 US liquid gallons. Elsewhere, the oil production is expressed in cubic meters (m³) or tonnes (t). The cubic meter is a unit of volume in the SI; the tonne is a unit of mass in the metric system. One tonne of oil ranges from 6 to 8 barrels of oil (bbl), depending on the oil density (mass = volume × density).




barrels (oil)

Also known as:

oil barrel (plural: oil barrels), barrel (oil) (plural: barrels (oil))

Barrel (oil) conversions: direct access

A detailed list with conversions from barrels (oil) to other (metric, imperial, or customary) volume measurement units is shown below.