Global Conversion Equations
L/100km to US MPG
US MPG = 235.215 ÷ L/100km
L/100km to UK MPG
UK MPG = 282.481 ÷ L/100km
US MPG to km/L
km/L = US MPG ÷ 2.35215
UK MPG to US MPG
US MPG = UK MPG ÷ 1.20095
Fuel Economy Unit Converter
Convert instantly between US MPG, UK Imperial MPG, Liters per 100km (L/100km), Kilometers per Liter (km/L), and MPGe with two-way synchronization.
Live Multi-Unit Fuel Economy Converter
Enter any number in any box below—all other units convert and synchronize automatically in real time.
MPG
Standard in the United StatesMPG Imp
Standard in the United KingdomL/100km
Standard in Europe, Canada, Australiakm/L
Standard in India, Japan, South AmericaMPGe
Electric Vehicle Energy EquivalencekWh/100mi
Standard EV Consumption MetricKey Conversion Formulas
• L/100km = 235.215 ÷ US MPG
• US MPG = 235.215 ÷ L/100km
• UK MPG = US MPG × 1.20095
• km/L = 100 ÷ L/100km
• US MPG = km/L × 2.35215
• kWh/100mi = (33.7 ÷ MPGe) × 100
Featured Snippet Reference
Universal Fuel Economy Conversion Formulas
Core mathematical constants for translating between volume-over-distance (consumption) and distance-over-volume (economy).
L/100km = 235.215 ÷ US MPG | US MPG = 235.215 ÷ L/100km
US MPG to L/100km235.215 ÷ 35.0 US MPG6.72 L/100km
US MPG to UK MPG35.0 US MPG × 1.2009542.03 UK MPG
km/L to US MPG14.5 km/L × 2.3521534.11 US MPG
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Frequently asked questions
Divide 235.215 by your US MPG figure. Formula: 235.215 ÷ US MPG = L/100km. For example, 30 US MPG is 235.215 ÷ 30 = 7.84 L/100km.
A UK Imperial gallon is defined as 4.54609 liters, whereas a US liquid gallon is defined as 3.78541 liters. A UK gallon is approximately 20.09% larger than a US gallon, which is why the exact same car tested in the UK receives a 20% higher MPG rating.
Multiply your km/L figure by 2.35215. Formula: km/L × 2.35215 = US MPG. For example, 15 km/L × 2.35215 = 35.28 US MPG.
MPGe (Miles Per Gallon equivalent) represents the distance an EV travels using 33.7 kWh of electricity (the energy equivalent of 1 US gallon of gasoline). To convert MPGe to kWh/100mi, divide 3,370 by your MPGe figure. For example, 120 MPGe = 3,370 ÷ 120 = 28.08 kWh / 100 miles.
The United States uses Miles Per US Gallon (MPG US). The United Kingdom uses Imperial MPG. Continental Europe, Canada, and Australia use Liters per 100km (L/100km). India, Japan, and South America commonly use Kilometers per Liter (km/L).