Miles per US gallon to Litres per 100 km
1 mile per US gallon = 235.21 litres per 100 km · 1 L/100 km = 235.21 mpg (US)
1 mile per US gallon = 235.21 litres per 100 km
How it’s calculated
L/100 km = 235.2145833 ÷ mpg (US)
- These units are inversely related (one measures amount per distance, the other distance per amount), so divide 235.2145833 by the value.
- Doubling one halves the other. A value of zero has no finite equivalent.
- 1 mpg (US) = 235.2145833 L/100 km · 1 L/100 km = 235.2145833 mpg (US)
Show worked solutionFactor, unit cancellation and rounding, step by step
These units are inversely related
One unit measures “per distance” and the other “per volume” or “per time”, so the conversion divides instead of multiplying. Go through km/L. Source: Derived from exact length, volume and time definitions (NIST SP 811 / Handbook 44).
Convert to km/L
Convert km/L to L/100 km
L/100 km = 100 ÷ km/L
Round the answer
Rounded to 5 significant figures.
Answer: 235.21 L/100 km
1 mpg (US) in other units
Batch convert mpg (US) → L/100 km
- 1 mpg (US) = 235.21 L/100 km
- 5 mpg (US) = 47.043 L/100 km
- 10 mpg (US) = 23.521 L/100 km
- 25 mpg (US) = 9.4086 L/100 km
Quick examples
- 1 mile per US gallon = 235.21 litres per 100 km
- 5 miles per US gallon = 47.043 litres per 100 km
- 10 miles per US gallon = 23.521 litres per 100 km
- 25 miles per US gallon = 9.4086 litres per 100 km
- 100 miles per US gallon = 2.3521 litres per 100 km
About these units
Mile per US gallon (mpg (US))
US customary
1 mpg (US) = 0.4251437074 km/L
Source: Derived from exact length, volume and time definitions (NIST SP 811 / Handbook 44)
Litre per 100 km (L/100 km)
metric (non-SI)
km/L = 100 ÷ L/100 km
Source: Derived from exact length, volume and time definitions (NIST SP 811 / Handbook 44)
Miles per US gallon to litres per 100 km conversion table
| Miles per US gallon (mpg (US)) | Litres per 100 km (L/100 km) |
|---|---|
| 10 mpg (US) | 23.521 L/100 km |
| 15 mpg (US) | 15.681 L/100 km |
| 20 mpg (US) | 11.761 L/100 km |
| 25 mpg (US) | 9.4086 L/100 km |
| 30 mpg (US) | 7.8405 L/100 km |
| 35 mpg (US) | 6.7204 L/100 km |
| 40 mpg (US) | 5.8804 L/100 km |
| 45 mpg (US) | 5.227 L/100 km |
| 50 mpg (US) | 4.7043 L/100 km |
| 60 mpg (US) | 3.9202 L/100 km |
| 70 mpg (US) | 3.3602 L/100 km |
Related conversions
Frequently asked questions
How do I convert miles per US gallon to litres per 100 km?
Use L/100 km = 235.2145833 ÷ mpg (US). These units are inversely related (one measures amount per distance, the other distance per amount), so divide 235.2145833 by the value.
How many litres per 100 km are in 1 mile per US gallon?
1 mile per US gallon (mpg (US)) equals 235.21 litres per 100 km (L/100 km); more precisely 235.2145833.
How many miles per US gallon are in 1 litre per 100 km?
1 litre per 100 km (L/100 km) equals 235.21 miles per US gallon (mpg (US)); more precisely 235.2145833.
What is 10 mpg (US) in L/100 km?
10 miles per US gallon = 23.521 litres per 100 km.
Is the mile per US gallon a US or a UK unit?
This converter uses the US customary mile per US gallon. US and UK units with the same name can differ, so check which one your source uses.
Formula: L/100 km = 235.2145833 ÷ mpg (US). Factors last reviewed 2026-10-27.