Convert barrels to cubic feet

1 bbl=5.61458ft³

Use the converter below to change any barrels value into cubic feet instantly — with formula, conversion table, and real-world examples.

You have

Equals

5.614583

Conversion formula

Forward

cubic feet = barrels × 5.61458

Reverse

barrels = cubic feet × 0.1781

Example: 10 bbl × 5.61458 = 56.1458 ft³.

About both units

From

Barrel

bbl

The oil barrel equals 158.987 litres or 42 US gallons. It is the global pricing unit for crude oil and petroleum products. The US dry barrel (115.6 L) and UK beer barrel (163.7 L) are different units that share the same name.

Real-world: Brent crude and WTI oil are priced in US dollars per barrel. Global oil demand is about 100 million barrels per day.

Read full barrel reference →

Cubic Foot

ft³

The cubic foot equals 28.317 litres exactly. It is used in US HVAC and ventilation (CFM — cubic feet per minute), US natural gas billing, and appliance capacity (refrigerators, freezers). One cubic foot is roughly the volume of a standard shoebox times six.

Real-world: A typical US fridge is 20 cu ft (566 L). US HVAC flow rated in CFM. US residential gas billed per 100 cu ft (CCF).

Read full cubic foot reference →

Barrel to Cubic Foot conversion table

Common barrels to cubic feet values for quick reference.

Barrel (bbl)	Cubic Foot (ft³)
1 bbl	5.61458 ft³
2 bbl	11.2292 ft³
5 bbl	28.0729 ft³
10 bbl	56.1458 ft³
20 bbl	112.292 ft³
50 bbl	280.729 ft³
100 bbl	561.458 ft³
200 bbl	1,122.92 ft³
500 bbl	2,807.29 ft³
1,000 bbl	5,614.58 ft³

Tips & common mistakes

Quick tips

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.

Avoid these

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.

Frequently asked questions

How many cubic feet in a barrel?

One barrel equals 5.61458 cubic feet.

How do I convert barrels to cubic feet?

Multiply the barrel value by 5.61458 to get the equivalent in cubic feet.

What is 100 barrels in cubic feet?

100 barrels equals 561.458 cubic feet.

Is a barrel bigger than a cubic foot?

Yes. 1 barrel equals 5.61458 cubic feet, so one barrel is larger.

How to convert barrels to cubic feet without a calculator?

Multiply by 5.61 for a quick estimate; use a calculator for precise results.

Related volume conversions

📊 See full comparison matrix →

Conversions in other categories

WeightKilogram → Pound LengthKilometer → Mile TemperatureCelsius → Fahrenheit AreaSquare Meter → Square Foot SpeedKilometer per Hour → Mile per Hour EnergyKilojoule → Kilocalorie PressureBar → Pound per Square Inch PowerKilowatt → Mechanical Horsepower