Skip to content

Convert gallons per 100 miles (UK) to miles per gallon (UK)

Here you can quickly calculate how many miles per gallon (UK) fit in one gallons per 100 miles (UK).
write a number and we convert instantly

- scroll: formula · table · questions -

  • 1 gal/100 mi (UK) = 100 mpg (UK)
  • 1 mpg (UK) = 100 gal/100 mi (UK)

Gallons per 100 miles (UK) to miles per gallon (UK) conversion table

Gallons per 100 miles (UK) Miles per gallon (UK)
1 100
2 50
5 20
10 10
20 5
50 2
100 1

Formula to convert gallons per 100 miles (UK) to miles per gallon (UK)

To convert gallons per 100 miles (UK) to miles per gallon (UK), divide 100 by the input value.

1 gal/100 mi (UK) = 100 mpg (UK)
Example: 1 Gallons per 100 miles (UK) = 100 Miles per gallon (UK)

Common mistakes in fuel consumption conversion

  • US and UK mpg use different gallons: the imperial gallon (4.546 L) is 20% larger than the US gallon (3.785 L). The same car therefore scores about 20% higher in UK figures, 40 mpg UK ≈ 33 mpg US. Check which gallon a source means.
  • Mpg is inverted relative to consumption, so improvements are not linear: going from 10 to 20 mpg halves fuel use, while 40 to 50 mpg cuts it by only a fifth. Convert to l/100 km when comparing savings, that scale is proportional to actual fuel burned.

Quick gallons per 100 miles (UK) to/from miles per gallon (UK) conversion quiz

Score: 0

171 gallons per 100 miles (UK) equals 0.351 miles per gallon (UK).

Correct answer: 171 gallons per 100 miles (UK) = 0.585 miles per gallon (UK).

21.6 miles per gallon (UK) equals 4.63 gallons per 100 miles (UK).

Correct answer: 21.6 miles per gallon (UK) = 4.63 gallons per 100 miles (UK).

24.9 gallons per 100 miles (UK) equals 4.02 miles per gallon (UK).

Correct answer: 24.9 gallons per 100 miles (UK) = 4.02 miles per gallon (UK).

240 miles per gallon (UK) equals 0.417 gallons per 100 miles (UK).

Correct answer: 240 miles per gallon (UK) = 0.417 gallons per 100 miles (UK).

19.1 gallons per 100 miles (UK) equals 3.14 miles per gallon (UK).

Correct answer: 19.1 gallons per 100 miles (UK) = 5.24 miles per gallon (UK).

More conversions in fuel consumption