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    Gallon (US)/100mi to Gallon (UK)/100mi Converter

    Convert Gallon (US)/100mi (gal/100mi) to Gallon (UK)/100mi (gal (UK)/100mi) instantly. 1 gal/100mi = 1.20095 gal (UK)/100mi.

    Fuel Economy Converter

    11 units available

    Decimals:
    1.20095

    1 gal/100mi = 1.20095 gal (UK)/100mi

    Formula:

    gal (UK)/100mi = gal/100mi × 1.2009499271

    With your value: 1 gal/100mi = 1.20094993 gal (UK)/100mi

    Other Gallon (US)/100mi to Gallon (UK)/100mi conversions

    2 gal/100mi to gal (UK)/100mi3 gal/100mi to gal (UK)/100mi4 gal/100mi to gal (UK)/100mi5 gal/100mi to gal (UK)/100mi6 gal/100mi to gal (UK)/100mi7 gal/100mi to gal (UK)/100mi8 gal/100mi to gal (UK)/100mi

    Gallon (US)/100mi to Gallon (UK)/100mi Conversion Table

    Gallon (US)/100mi (gal/100mi)Gallon (UK)/100mi (gal (UK)/100mi)
    0.50.600475
    11.20095
    22.4019
    56.00475
    1012.009499
    1518.014249
    2024.018999
    2530.023748
    5060.047496
    100120.094993
    250300.237482
    500600.474964
    10001,200.949927

    Gallon (UK)/100mi to Gallon (US)/100mi Conversion Table

    Gallon (UK)/100mi (gal (UK)/100mi)Gallon (US)/100mi (gal/100mi)
    0.50.416337
    10.832674
    21.665348
    54.163371
    108.326742
    1512.490113
    2016.653484
    2520.816855
    5041.633709
    10083.267418
    250208.168546
    500416.337092
    1000832.674184

    Where these values come from

    Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

    Gallon (US)/100mi (gal/100mi)

    Fuel Economy

    Exact conversion

    Composite of a defined volume and a defined length. US and imperial gallons differ, so mpg figures are not interchangeable between them.

    Source: NIST Special Publication 811, Guide for the Use of the International System of Units

    National Institute of Standards and Technology (US) · Reviewed 2026-07-01

    Gallon (UK)/100mi (gal (UK)/100mi)

    Fuel Economy

    Exact conversion

    Composite of a defined volume and a defined length. US and imperial gallons differ, so mpg figures are not interchangeable between them.

    Source: NIST Special Publication 811, Guide for the Use of the International System of Units

    National Institute of Standards and Technology (US) · Reviewed 2026-07-01

    How to Convert Gallon (US)/100mi to Gallon (UK)/100mi

    To convert from Gallon (US)/100mi (gal/100mi) to Gallon (UK)/100mi (gal (UK)/100mi), multiply the value by 1.2009499271.

    Formula: gal (UK)/100mi = gal/100mi × 1.2009499271

    Reverse: gal/100mi = gal (UK)/100mi × 0.8326741835

    Step-by-Step Example

    1. Start with your value in Gallon (US)/100mi. For example: 5 gal/100mi
    2. Multiply by the conversion factor: 5 x 1.2009499271
    3. The result is: 6.00475 gal (UK)/100mi

    About Gallon (US)/100mi

    The gallon (us)/100mi (gal/100mi) is a unit of fuel economy. The gallon (us)/100mi scale is offset from the kilometre per litre scale, so converting it requires both a factor and an offset rather than a single multiplier. UnitConvertLab converts it against every other fuel economy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

    Common uses: fuel economy calculations, engineering and science, education.

    About Gallon (UK)/100mi

    The gallon (uk)/100mi (gal (UK)/100mi) is a unit of fuel economy. The gallon (uk)/100mi scale is offset from the kilometre per litre scale, so converting it requires both a factor and an offset rather than a single multiplier. UnitConvertLab converts it against every other fuel economy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

    Common uses: fuel economy calculations, engineering and science, education.

    Frequently Asked Questions

    How many Gallon (UK)/100mi are in 1 Gallon (US)/100mi?

    There are exactly 1.2009499271 Gallon (UK)/100mi in 1 Gallon (US)/100mi. This means the conversion factor from Gallon (US)/100mi to Gallon (UK)/100mi is 1.2009499271.

    What is the formula to convert Gallon (US)/100mi to Gallon (UK)/100mi?

    The formula to convert Gallon (US)/100mi to Gallon (UK)/100mi is: gal (UK)/100mi = gal/100mi × 1.2009499271. For example, to convert 10 Gallon (US)/100mi to Gallon (UK)/100mi, you would multiply 10 by 1.2009499271.

    What is a Gallon (US)/100mi?

    The gallon (us)/100mi (gal/100mi) is a unit of fuel economy. The gallon (us)/100mi scale is offset from the kilometre per litre scale, so converting it requires both a factor and an offset rather than a single multiplier. UnitConvertLab converts it against every other fuel economy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

    What is a Gallon (UK)/100mi?

    The gallon (uk)/100mi (gal (UK)/100mi) is a unit of fuel economy. The gallon (uk)/100mi scale is offset from the kilometre per litre scale, so converting it requires both a factor and an offset rather than a single multiplier. UnitConvertLab converts it against every other fuel economy unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.

    What are the common uses of Gallon (US)/100mi?

    The Gallon (US)/100mi is commonly used in fuel economy calculations, engineering and science, education.

    Related Fuel Economy Conversions

    Kilometer/Liter → Gallon (UK)/100miLiter/100km → Gallon (UK)/100miMiles/Gallon (US) → Gallon (UK)/100miMiles/Gallon (UK) → Gallon (UK)/100miMile/Liter → Gallon (UK)/100miGallon (US)/100mi → Kilometer/LiterGallon (US)/100mi → Liter/100kmGallon (US)/100mi → Miles/Gallon (US)Gallon (US)/100mi → Miles/Gallon (UK)

    Cite this page

    UnitConvertLab. (2026). Gallon (US)/100mi to Gallon (UK)/100mi converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/gallon_per_100mi_us-to-gallon_per_100mi_uk