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    Convert US gallons to Gallon (UK)

    Western Europe · UK vs US Volume · active · modern

    Conventional value The unit is customary but its modern value is settled and widely cited; the arithmetic itself is exact.

    1 US gallon = 0.832674 Gallon (UK)

    Gallon (UK) = US gallons × 0.83267418

    Convert any amount

    US gallons =0.832674 Gallon (UK)

    US gallons to Gallon (UK) table

    US gallonsGallon (UK)
    0.25 US gallons0.208169 Gallon (UK)
    0.5 US gallons0.416337 Gallon (UK)
    1 US gallon0.832674 Gallon (UK)
    2 US gallons1.66535 Gallon (UK)
    3 US gallons2.49802 Gallon (UK)
    4 US gallons3.3307 Gallon (UK)
    5 US gallons4.16337 Gallon (UK)
    10 US gallons8.32674 Gallon (UK)
    20 US gallons16.6535 Gallon (UK)
    25 US gallons20.8169 Gallon (UK)
    50 US gallons41.6337 Gallon (UK)
    100 US gallons83.2674 Gallon (UK)

    About the Gallon (UK)

    Imperial gallon = 4.546 liters. 20% larger than US gallon.

    Symbol
    gal UK
    Value in SI
    1 Gallon (UK) = 4.54609 litre
    Typical use
    general
    Source
    UnitConvertLab measurement atlas

    Every atlas conversion routes through the SI litre. See our methodology and data provenance pages for how these values are sourced and verified.

    Related units and variant risk

    Other uk vs us volume units in the Western Europe family, least settled first. If your figure came from a land record, invoice or historical document rather than a calculator, check these before assuming a single standard.

    Related conversions

    Frequently asked

    How many Gallon (UK) are in a US gallon?

    1 US gallon = 0.832674 Gallon (UK). Multiply the number of US gallons by 0.83267418 to get Gallon (UK).

    What is Gallon (UK) used for?

    Imperial gallon = 4.546 liters. 20% larger than US gallon. It is classified as active and dates from the modern period.

    Is the Gallon (UK) value exact?

    Yes for practical purposes. UnitConvertLab converts every atlas unit through the SI litre, so the arithmetic itself introduces no rounding beyond the digits shown.

    How reliable is this Gallon (UK) conversion?

    Conventional value — The unit is customary but its modern value is settled and widely cited; the arithmetic itself is exact. Source: UnitConvertLab measurement atlas.

    Cite this page

    UnitConvertLab. (2026). Convert US gallons to Gallon (UK). UnitConvertLab. Retrieved from https://unitconvertlab.com/regional/us-gallon-to-gallon-uk

    Report an incorrect value or source

    Regional units vary by district and by century. If this figure, its variant list or its citation is wrong where you are, tell us — the report carries the page context automatically.