Gallons (US – Liquid) to Fluid ounces (UK) converter

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

1 US gal ≈ 133.227869541 UK fl oz
1 UK fl oz ≈ 0.00750593703441 US gal

Formula: UK fl oz ≈ US gal × 133.227869541
US gal ≈ UK fl oz × 0.00750593703441

Definitions: 1 US gal = 231 in³; 1 UK fl oz = 1/160 UK gal

The US liquid gallon is the everyday gallon in the United States, used for fuel, milk, paint and most liquids sold by volume. It derives from the old English wine gallon, which was fixed at 231 cubic inches.

The imperial fluid ounce is 1/20 of an imperial pint and is about 4% smaller than the US fluid ounce. It appears in older British recipes and on some UK products, although metric units dominate labels today.

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