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

Here you can quickly calculate how many gallons per 100 miles (US) fit in one miles per gallon (US).
write a number and we convert instantly
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  • 1 mpg (US) = 100 gal/100 mi (US)
  • 1 gal/100 mi (US) = 100 mpg (US)

Conversion from miles per gallon (US) to gallons per 100 miles (US) example

  • 1 Miles per gallon (US) = 100 Gallons per 100 miles (US)

Miles per gallon (US) to gallons per 100 miles (US) conversion table

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

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

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

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

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

Score: 0

205 gallons per 100 miles (US) equals 0.488 miles per gallon (US).

Correct answer: 205 gallons per 100 miles (US) = 0.488 miles per gallon (US).

8.8 miles per gallon (US) equals 11.4 gallons per 100 miles (US).

Correct answer: 8.8 miles per gallon (US) = 11.4 gallons per 100 miles (US).

201 gallons per 100 miles (US) equals 0.498 miles per gallon (US).

Correct answer: 201 gallons per 100 miles (US) = 0.498 miles per gallon (US).

220 gallons per 100 miles (US) equals 0.455 miles per gallon (US).

Correct answer: 220 gallons per 100 miles (US) = 0.455 miles per gallon (US).

More conversions in fuel consumption