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

Fuel Economy Converter

11 units available

Decimals:

From

To

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)

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

Kilometer/Gallon (US) (km/gal)	Kilometer/Gallon (UK) (km/gal (UK))
0.5	0.600475
1	1.20095
2	2.401901
5	6.004752
10	12.009504
15	18.014256
20	24.019008
25	30.023761
50	60.047521
100	120.095042
250	300.237606
500	600.475211
1000	1,200.950422

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

Kilometer/Gallon (UK) (km/gal (UK))	Kilometer/Gallon (US) (km/gal)
0.5	0.416337
1	0.832674
2	1.665348
5	4.163369
10	8.326738
15	12.490108
20	16.653477
25	20.816846
50	41.633692
100	83.267384
250	208.16846
500	416.33692
1000	832.67384

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

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

About Kilometer/Gallon (US)

The kilometer/gallon (us) (km/gal) is a unit of fuel economy. One kilometer/gallon (us) equals 0.264172052 kilometre per litres. 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 Kilometer/Gallon (UK)

The kilometer/gallon (uk) (km/gal (UK)) is a unit of fuel economy. One kilometer/gallon (uk) equals 0.219969157 kilometre per litres. 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 Kilometer/Gallon (UK) are in 1 Kilometer/Gallon (US)?

There are exactly 1.2009504223 Kilometer/Gallon (UK) 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) to Kilometer/Gallon (UK), you would multiply 10 by 1.2009504223.

What is a Kilometer/Gallon (US)?