Convert Barrel to Cubic Meter (bbl → m³)

Converting barrels to cubic meters is straightforward: multiply by the conversion factor. Follow these three steps to do it by hand or in your head.

1. 1
   Take your value in barrels

   Start with the number of barrels (bbl) you want to convert.
2. 2
   Multiply by 0.158987

   The conversion factor from bbl to m³ is 0.158987. Multiply your value by this number.
3. 3
   Read the result in cubic meters

   The result is your value in cubic meters (m³).

Multiply the value in barrels by 0.158987. For the reverse direction, multiply by 6.289811.

• ✓1 oil barrel = 42 US gallons = 158.987 L exactly.
• ✓Barrel prices quoted in USD — watch currency impact on non-US economies.
• ✓Different industries (beer, dry goods) use different barrel sizes — oil barrel is a specific unit.

• ✗Using beer barrel (163.7 L) or dry barrel (115.6 L) in oil contexts.
• ✗Confusing barrel of oil with barrel of beer — different volumes.
• ✗Assuming barrels are standard worldwide — only oil industry uses the 42 gallon version globally.

What is the Barrel?

The oil barrel equals exactly 42 US gallons (158.987 liters) and is the global benchmark unit for crude oil pricing and trading. The 42-gallon size dates to the 1860s Pennsylvania oil boom, when oil was shipped in repurposed wooden barrels of various sizes; the standard settled at 42 gallons as a practical industry compromise. Today, the oil barrel is virtually synonymous with crude oil — Brent crude and WTI prices are quoted per barrel ($/bbl), OPEC tracks production in barrels per day, and proven reserves are listed in billions of barrels. Despite metrication, the barrel persists in petroleum trading and journalism worldwide. It relates to the US gallon (1 bbl = 42 US gal), the cubic meter (1 bbl ≈ 0.159 m³), and the liter (1 bbl ≈ 159 L). Note that beer and wine barrels have different volumes.

• Crude oil international pricing (Brent, WTI)
• Petroleum product reporting (OPEC, EIA)
• Energy-sector financial reporting

What is the Cubic Meter?

The cubic meter equals exactly 1,000 liters and is the SI unit of volume, used for water utilities, construction materials, shipping containers, gas volumes, and industrial-scale measurements. Domestic water bills typically show consumption in cubic meters (a typical household uses 5–15 m³ per month), and natural-gas billing also uses m³. Concrete is delivered by the cubic meter, and shipping containers have internal volumes of about 33 m³ (20-ft) or 67 m³ (40-ft). The cubic meter is the volume of a cube measuring 1 meter on each side. It relates to the liter (1 m³ = 1,000 L), the cubic centimeter (1 m³ = 1,000,000 cm³), the cubic foot (1 m³ ≈ 35.31 ft³), and the US gallon (1 m³ ≈ 264.17 gal). Truck-cargo capacity, swimming-pool size, and natural-gas reserves are all commonly expressed in cubic meters.

• Household water and gas consumption on utility bills
• Concrete ordering for construction projects
• Shipping container and freight capacity