US Gallons to UK Gallons Converter
1 US gallon = 0.832674 UK imperial gallons. The 20% difference causes confusion in fuel economy comparisons.
Formula:1 US gal = 0.832674 UK gal
Quick conversion table — Liter to Milliliter
0.5 L mL
1 L mL
2 L mL
5 L mL
10 L mL
20 L mL
50 L mL
100 L mL
500 L mL
1,000 L mL
How to convert gal_us to gal_uk
To convert us gallons to uk gallons, use the formula: 1 US gal = 0.832674 UK gal. Simply enter the value you want to convert in the field above and the result appears instantly. You can also type in the result field to reverse the conversion.
All conversions use precise mathematical constants validated against international SI standards (NIST and ISO 80000). Results are accurate to 8 significant figures.
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