Kilometer/Gallon (UK) to Liter/100km Converter

Fuel Economy Converter

11 units available

Decimals:

From

To

454.609189

1 km/gal (UK) = 454.609189 L/100km

Formula:

L/100km = km/gal (UK) × 454.6091886873

With your value: 1 km/gal (UK) = 454.60918869 L/100km

Other Kilometer/Gallon (UK) to Liter/100km conversions

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

Kilometer/Gallon (UK) to Liter/100km Conversion Table

Kilometer/Gallon (UK) (km/gal (UK))	Liter/100km (L/100km)
0.5	909.218377
1	454.609189
2	227.304594
5	90.921838
10	45.460919
15	30.307279
20	22.730459
25	18.184368
50	9.092184
100	4.546092
250	1.818437
500	0.909218
1000	0.454609

Liter/100km to Kilometer/Gallon (UK) Conversion Table

Liter/100km (L/100km)	Kilometer/Gallon (UK) (km/gal (UK))
0.5	909.218377
1	454.609189
2	227.304594
5	90.921838
10	45.460919
15	30.307279
20	22.730459
25	18.184368
50	9.092184
100	4.546092
250	1.818437
500	0.909218
1000	0.454609

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 (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

Liter/100km (L/100km)

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 (UK) to Liter/100km

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

Formula: L/100km = km/gal (UK) × 454.6091886873

Reverse: km/gal (UK) = L/100km × 454.6091886873

Step-by-Step Example

Start with your value in Kilometer/Gallon (UK). For example: 5 km/gal (UK)
Apply L/100km = km/gal (UK) × 454.6091886873
The result is: 90.921838 L/100km

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.

About Liter/100km

The liter/100km (L/100km) is a unit of fuel economy. The liter/100km 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 Liter/100km are in 1 Kilometer/Gallon (UK)?

There are exactly 454.6091886873 Liter/100km in 1 Kilometer/Gallon (UK).

What is the formula to convert Kilometer/Gallon (UK) to Liter/100km?

The formula to convert Kilometer/Gallon (UK) to Liter/100km is: L/100km = km/gal (UK) × 454.6091886873. For example, to convert 10 Kilometer/Gallon (UK) to Liter/100km, you would apply the formula to 10.

What is a Kilometer/Gallon (UK)?