THE RIGHT UNIT. THE CLEAR ANSWER.
Imperial gallon converter.
Convert liquids and cubic measurements. US customary, imperial, and metric cooking measures are labeled separately.
Volume converter
gal (UK)
gal (US)
THE RESULT
1 gal (UK) = 1.200949926 gal (US)
Calculated in your browserFormula & conversion table
US and UK gallons, pints, and fluid ounces are different sizes. A metric cup is 250 mL; a US customary cup is 236.5882365 mL.
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Imperial gallon equivalents
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About volume conversions
Convert liquids and cubic measurements. US customary, imperial, and metric cooking measures are labeled separately.
Each unit is defined relative to one common base unit, so the same factors work consistently in both directions. Select any unit above to see its conversion formula, a worked example, and a reference table.
How precision and conventions work