Skip to main content
    UnitConvertLab
    UnitConvertLAB
    Fuel Economy Conversion

    1 Kilometer/Gallon (US) to Kilometer/Gallon (UK)

    Quick answer

    1 Kilometer/Gallon (US) (km/gal) equals

    1.20095 km/gal (UK)

    To convert 1 Kilometer/Gallon (US)s to Kilometer/Gallon (UK)s, multiply by 1.2009504223. Therefore, 1 Kilometer/Gallon (US) (km/gal) equals 1.20095 Kilometer/Gallon (UK) (km/gal (UK)).

    Formula: km/gal (UK) = km/gal × 1.2009504223. Calculation: 1 × 1.2009504223 = 1.20095 km/gal (UK).

    Convert Kilometer/Gallon (US) (km/gal) to Kilometer/Gallon (UK) (km/gal (UK)) online with our free unit converter. In fuel economy, 1 km/gal = 1.20095 km/gal (UK). Explore step-by-step conversion steps, mathematical formulas, and quick conversion reference tables below.

    Worked example: converting Kilometer/Gallon (US) to Kilometer/Gallon (UK)

    1. Step 1 — start with the formula. km/gal (UK) = km/gal × 1.2009504223
    2. Step 2 — substitute your figure. 1 km/gal × 1.2009504223
    3. Step 3 — read the result. 1 km/gal = 1.20095 km/gal (UK)
    4. Step 4 — check it in reverse. km/gal = km/gal (UK) × 0.8326738402 returns 1 km/gal, which matches the figure you started with.

    Fuel Economy Converter

    11 units available

    Decimals:
    1.20095

    1 km/gal = 1.20095 km/gal (UK)

    Formula:

    km/gal (UK) = km/gal × 1.2009504223

    With your value: 1 km/gal = 1.20095042 km/gal (UK)

    Other Kilometer/Gallon (US) to Kilometer/Gallon (UK) conversions

    2 km/gal to km/gal (UK)3 km/gal to km/gal (UK)4 km/gal to km/gal (UK)5 km/gal to km/gal (UK)6 km/gal to km/gal (UK)7 km/gal to km/gal (UK)8 km/gal to km/gal (UK)Full Kilometer/Gallon (US) to Kilometer/Gallon (UK) converter

    Kilometer/Gallon (US) to Kilometer/Gallon (UK) Conversion Table

    Kilometer/Gallon (US) (km/gal)Kilometer/Gallon (UK) (km/gal (UK))
    0.50.600475
    11.20095
    22.401901
    56.004752
    1012.009504
    1518.014256
    2024.019008
    2530.023761
    5060.047521
    100120.095042
    250300.237606
    500600.475211
    10001,200.950422

    Kilometer/Gallon (UK) to Kilometer/Gallon (US) Conversion Table

    Kilometer/Gallon (UK) (km/gal (UK))Kilometer/Gallon (US) (km/gal)
    0.50.416337
    10.832674
    21.665348
    54.163369
    108.326738
    1512.490108
    2016.653477
    2520.816846
    5041.633692
    10083.267384
    250208.16846
    500416.33692
    1000832.67384

    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.

    Kilometer/Gallon (US) (km/gal)

    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

    Kilometer/Gallon (UK) (km/gal (UK))

    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 Kilometer/Gallon (US) to Kilometer/Gallon (UK)

    To convert from Kilometer/Gallon (US) (km/gal) to Kilometer/Gallon (UK) (km/gal (UK)), multiply the value by 1.2009504223.

    Formula: km/gal (UK) = km/gal × 1.2009504223

    Reverse: km/gal = km/gal (UK) × 0.8326738402

    Step-by-Step Example

    1. Start with your value in Kilometer/Gallon (US). For example: 5 km/gal
    2. Multiply by the conversion factor: 5 x 1.2009504223
    3. The result is: 6.004752 km/gal (UK)

    Kilometer/Gallon (US) and Kilometer/Gallon (UK) Relationship

    Both Kilometer/Gallon (US) and Kilometer/Gallon (UK) belong to the US Customary / Imperial system, making this an intra-system conversion within fuel economy. Since 1 Kilometer/Gallon (US) equals approximately 1.201 Kilometer/Gallon (UK)s, the Kilometer/Gallon (US) represents a larger unit interval than the Kilometer/Gallon (UK). Understanding the relationship between Kilometer/Gallon (US) and Kilometer/Gallon (UK) is essential for accurate calculations in physics, engineering, commerce, and daily applications.

    About Kilometer/Gallon (US)

    The Kilometer/Gallon (US) (symbol: km/gal) is a recognized unit in the US Customary / Imperial measurement framework, utilized within fuel economy applications for precision and standardized data representation.

    Common uses of Kilometer/Gallon (US): fuel economy calculations, engineering and science, education.

    About Kilometer/Gallon (UK)

    The Kilometer/Gallon (UK) (symbol: km/gal (UK)) is a recognized unit in the US Customary / Imperial measurement framework, utilized within fuel economy applications for precision and standardized data representation.

    Common uses of Kilometer/Gallon (UK): fuel economy calculations, engineering and science, education.

    Frequently Asked Questions

    What is 1 Kilometer/Gallon (US) in Kilometer/Gallon (UK)?
    1 Kilometer/Gallon (US) equals 1.20095 Kilometer/Gallon (UK).
    How many Kilometer/Gallon (UK)s are in 1 Kilometer/Gallon (US)?
    There are exactly 1.2009504223 Kilometer/Gallon (UK)s in 1 Kilometer/Gallon (US). This means the conversion factor from Kilometer/Gallon (US) to Kilometer/Gallon (UK) is 1.2009504223.
    What is the formula to convert Kilometer/Gallon (US) to Kilometer/Gallon (UK)?
    The formula to convert Kilometer/Gallon (US) to Kilometer/Gallon (UK) is: km/gal (UK) = km/gal × 1.2009504223. For example, to convert 10 Kilometer/Gallon (US)s to Kilometer/Gallon (UK)s, you would multiply 10 by 1.2009504223.
    What is a Kilometer/Gallon (US)?
    The Kilometer/Gallon (US) (symbol: km/gal) is a recognized unit in the US Customary / Imperial measurement framework, utilized within fuel economy applications for precision and standardized data representation.
    What is a Kilometer/Gallon (UK)?
    The Kilometer/Gallon (UK) (symbol: km/gal (UK)) is a recognized unit in the US Customary / Imperial measurement framework, utilized within fuel economy applications for precision and standardized data representation.
    What are the common uses of Kilometer/Gallon (US)?
    The Kilometer/Gallon (US) is commonly used in fuel economy calculations, engineering and science, education.

    Related Fuel Economy Conversions

    Kilometer/Liter → Kilometer/Gallon (UK)Liter/100km → Kilometer/Gallon (UK)Miles/Gallon (US) → Kilometer/Gallon (UK)Miles/Gallon (UK) → Kilometer/Gallon (UK)Mile/Liter → Kilometer/Gallon (UK)Gallon (US)/100mi → Kilometer/Gallon (UK)Gallon (UK)/100mi → Kilometer/Gallon (UK)Kilometer/Gallon (US) → Kilometer/LiterKilometer/Gallon (US) → Liter/100km

    Cite this page

    UnitConvertLab. (2026). 1 Kilometer/Gallon (US) to Kilometer/Gallon (UK). UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/1-km_per_gallon_us-to-km_per_gallon_uk