MPG US to L/100km Conversion Chart
| Miles per Gallon (US) (mpg) | Liters per 100km (L/100km) | Reference Benchmark | Formula Step |
|---|---|---|---|
| 10 mpg | 23.52 L/100km | Heavy V8 Supercharged Truck Fuel Thirst Rating | 235.215 ÷ 10 = 23.52 L/100km |
| 15 mpg | 15.68 L/100km | Full-Size Commercial Van Urban Driving Consumption | 235.215 ÷ 15 = 15.68 L/100km |
| 20 mpg | 11.76 L/100km | Mid-Size All-Wheel Drive Utility Vehicle Rating | 235.215 ÷ 20 = 11.76 L/100km |
| 25 mpg | 9.41 L/100km | Standard Compact Crossover Family Commuter Metric | 235.215 ÷ 25 = 9.41 L/100km |
| 30 mpg | 7.84 L/100km | Efficient Turbocharged Four-Cylinder Highway Sedan | 235.215 ÷ 30 = 7.84 L/100km |
| 35 mpg | 6.72 L/100km | Aerodynamic Subcompact Hatchback Combined Cycle | 235.215 ÷ 35 = 6.72 L/100km |
| 40 mpg | 5.88 L/100km | Lightweight European Urban Commuter Car Benchmark | 235.215 ÷ 40 = 5.88 L/100km |
| 45 mpg | 5.23 L/100km | Modern Hybrid Sedan Commuter Highway Target | 235.215 ÷ 45 = 5.23 L/100km |
| 50 mpg | 4.7 L/100km | Dedicated Full Hybrid Vehicle Highway Benchmark | 235.215 ÷ 50 = 4.7 L/100km |
| 55 mpg | 4.28 L/100km | Ultra-Efficient Diesel or Hybrid Commuter Metric | 235.215 ÷ 55 = 4.28 L/100km |
| 60 mpg | 3.92 L/100km | Plug-in Hybrid Sustaining Charge Engine Metric | 235.215 ÷ 60 = 3.92 L/100km |
| 70 mpg | 3.36 L/100km | Aerodynamic Prototype High-Mileage Diesel Vehicle | 235.215 ÷ 70 = 3.36 L/100km |
| 80 mpg | 2.94 L/100km | Ultra-Lightweight Micro-Car Commuter Target | 235.215 ÷ 80 = 2.94 L/100km |
| 90 mpg | 2.61 L/100km | Small-Displacement Four-Stroke Urban Scooter | 235.215 ÷ 90 = 2.61 L/100km |
| 100 mpg | 2.35 L/100km | Ultra-Efficient Experimental Eco-Marathon Prototype | 235.215 ÷ 100 = 2.35 L/100km |
Miles per Gallon (US) to Liters per 100km Formula & Unit Definitions
Because US MPG measures distance per volume while L/100km measures volume per fixed distance, the two scales share an inverse mathematical relationship governed by the constant 235.214583. Derived from (100 km × 3.785411784 L/gal) ÷ 1.609344 km/mi = 235.214583, you convert US MPG to L/100km by dividing 235.215 by the MPG figure: L/100km = 235.215 ÷ MPG (US).
Quick Estimation: Quick mental shortcut: To convert US MPG to L/100km in your head, divide 240 by your MPG value (e.g. 240 ÷ 30 mpg = 8.0 L/100km; exact: 7.84 L/100km; or 240 ÷ 40 mpg = 6.0 L/100km; exact: 5.88 L/100km).
Miles per Gallon (US) — mpg US
Customary Distance Scale- Standard metric on US EPA window stickers and Department of Energy consumer guides
- Measures distance traveled (statute miles) per volume of fuel consumed (US liquid gallons)
- Higher numerical values indicate greater distance and superior vehicle fuel efficiency
Liters per 100 Kilometers — L/100km
European Consumption Standard- Official fuel consumption standard across the European Union, Canada, Australia, and New Zealand
- Measures actual liquid fuel volume consumed over a fixed reference distance of 100 km
- Lower numerical values denote superior vehicle fuel efficiency and reduced greenhouse emissions
Frequently Asked Questions
Q.How do you convert US MPG to L/100km?
Divide 235.215 by the US MPG figure: L/100km = 235.215 / MPG (US).
Q.What is the reverse conversion from L/100km to US MPG?
To convert back, use the L/100km to MPG US Converter where US MPG = 235.215 / L/100km.
Q.What is 30 US MPG in L/100km?
30 US MPG equals approximately 7.84 liters per 100 kilometers.
Q.Why does L/100km decrease when MPG increases?
MPG measures distance per unit volume (efficiency), whereas L/100km measures fuel volume burned over distance (consumption).
Q.Where does the 235.215 constant come from?
It comes from 100 divided by (1.609344 km/mi / 3.785411784 L/gal) = 235.214583.