Measurement Category Hub
Fuel Economy & Consumption Converters & Calculators
Convert vehicle mileage and consumption rates properly handling the inverse reciprocal relationship between MPG and L/100km. Use our universal interactive fuel economy & consumption calculator below or select one of our dedicated conversion shortcuts.
Fuel Economy & Consumption
(MPG (US))
Example: 30 MPG (US)
(MPG (UK))
e.g. 36.0285MPG (UK)
Standard: Standard Fuel Economy & Consumption unit
Enter any number above to convert Miles per Gallon (US) to Miles per Gallon (UK). Click (i) for brief unit info.
Popular Fuel Economy & Consumption Conversions
2 dedicated toolsMPG to L/100 km Converter (US Gallons)
Convert vehicle fuel efficiency between US Miles per Gallon and Liters per 100 Kilometers with exact reciprocal formulas.
L/100 km = 235.214583 ÷ MPG (US)
L/100 km to MPG Converter (US Gallons)
Convert metric fuel consumption (L/100 km) to US Miles per Gallon (MPG).
MPG (US) = 235.214583 ÷ (L/100 km)
Supported Fuel Economy & Consumption Units & Standards
| Unit Name | Symbol | Type / System | Relative Value |
|---|---|---|---|
Miles per US GallonBase SI | MPG (US) | SI Standard Unit | Defined by function |
Miles per Imperial Gallon | MPG (UK) | Derived Unit | Defined by function |
Liters per 100 Kilometers | L/100 km | Derived Unit | Defined by function |
Kilometers per Liter | km/L | Derived Unit | Defined by function |
Fuel Economy & Consumption FAQs
In the International System of Units (SI) or standard physical conventions, the base reference unit is Miles per US Gallon. All linear conversions within this category are mathematically derived from this base factor.