Barrels (UK) to Gallons (UK) converter

To convert barrels (UK) to gallons (UK), enter the value in the first field. The result in gallons (UK) is calculated automatically using the exact conversion factor.

1 UK bbl = 36 UK gal
1 UK gal ≈ 0.0277777777778 UK bbl

Formula: UK gal = UK bbl × 36
UK bbl ≈ UK gal × 0.0277777777778

Definitions: 1 UK bbl = 36 UK gal; 1 UK gal = 4.54609 L

The UK (imperial) barrel used for beer is 36 imperial gallons, or 288 imperial pints. It is the largest of the traditional British cask sizes, which include the firkin (9 gallons) and the kilderkin (18 gallons).

The imperial (UK) gallon is defined as exactly 4.54609 liters, about 20% larger than the US liquid gallon. It survives in British fuel-economy figures (miles per gallon) and is the base of the imperial system of capacity, in which the pint, quart, peck and bushel are all defined relative to it.

See the conversion table with commonly used values, handy for quick reference or study.