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

Fuel Economy Converter

11 units available

Decimals:

From

To

1,069.306666

1 gal (UK)/100mi = 1,069.306666 km/gal

Formula:

km/gal = gal (UK)/100mi × 1,069.3066664751

With your value: 1 gal (UK)/100mi = 1,069.30666648 km/gal

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

2 gal (UK)/100mi to km/gal 3 gal (UK)/100mi to km/gal 4 gal (UK)/100mi to km/gal 5 gal (UK)/100mi to km/gal 6 gal (UK)/100mi to km/gal 7 gal (UK)/100mi to km/gal 8 gal (UK)/100mi to km/gal

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

Gallon (UK)/100mi (gal (UK)/100mi)	Kilometer/Gallon (US) (km/gal)
0.5	2,138.613333
1	1,069.306666
2	534.653333
5	213.861333
10	106.930667
15	71.287111
20	53.465333
25	42.772267
50	21.386133
100	10.693067
250	4.277227
500	2.138613
1000	1.069307

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

Kilometer/Gallon (US) (km/gal)	Gallon (UK)/100mi (gal (UK)/100mi)
0.5	2,138.613333
1	1,069.306666
2	534.653333
5	213.861333
10	106.930667
15	71.287111
20	53.465333
25	42.772267
50	21.386133
100	10.693067
250	4.277227
500	2.138613
1000	1.069307

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 (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

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

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

This conversion uses an offset formula, so it cannot be described by a single multiplication factor.

Formula: km/gal = gal (UK)/100mi × 1,069.3066664751

Reverse: gal (UK)/100mi = km/gal × 1,069.3066664751

Step-by-Step Example

Start with your value in Gallon (UK)/100mi. For example: 5 gal (UK)/100mi
Apply km/gal = gal (UK)/100mi × 1,069.3066664751
The result is: 213.861333 km/gal

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.

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.

Frequently Asked Questions

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

There are exactly 1,069.3066664751 Kilometer/Gallon (US) in 1 Gallon (UK)/100mi.

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

The formula to convert Gallon (UK)/100mi to Kilometer/Gallon (US) is: km/gal = gal (UK)/100mi × 1,069.3066664751. For example, to convert 10 Gallon (UK)/100mi to Kilometer/Gallon (US), you would apply the formula to 10.

What is a Gallon (UK)/100mi?