Convert US gallon to imperial fluid ounce

Here you can quickly calculate how many imperial fluid ounce fit in one US gallon.

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Example: US gallon to imperial fluid ounce

Starting value Increment Accuracy

To convert US gallon to imperial fluid ounce, multiply by 133.22787.

1 gal = 133.22787 fl oz (uk)

Example: 1 US gallon = 133.22787 Imperial fluid ounce

'Gallon' names two different measures: the US gallon is about 3.785 liters and the imperial gallon about 4.546 liters, a full 20% larger. US fuel figures and UK recipes therefore use different gallons. Always check the country before converting.
A fluid ounce measures volume, not weight. The US fl oz is about 29.57 ml and the imperial fl oz about 28.41 ml, and neither matches the weight ounce (28.35 g) except roughly for water. Measure liquids in milliliters to avoid the ambiguity.

Score: 0

142 imperial fluid ounce equals 1.6 US gallon.

Correct answer: 142 imperial fluid ounce = 1.07 US gallon.

211 US gallon equals 2.81e+4 imperial fluid ounce.

Correct answer: 211 US gallon = 2.81e+4 imperial fluid ounce.

6 US gallon equals 799 imperial fluid ounce.

Correct answer: 6 US gallon = 799 imperial fluid ounce.

105 US gallon equals 6.99e+3 imperial fluid ounce.

Correct answer: 105 US gallon = 1.4e+4 imperial fluid ounce.