How it's calculated
L/100km = 235.215 ÷ MPG
MPG = US miles per gallon, 235.215 = unit-bridging constant, L/100km = result. The relation is symmetric: MPG = 235.215 ÷ (L/100km).
Common values
| MPG (US) | L/100km |
|---|---|
| 20 mpg | 11.76 L/100km |
| 30 mpg | 7.84 L/100km |
| 40 mpg | 5.88 L/100km |
| 50 mpg | 4.70 L/100km |
Common questions
Why is the conversion inverted?
MPG measures distance per fuel, while L/100km measures fuel per distance, so they move in opposite directions. As one rises, the other falls.
What is the formula?
Divide 235.215 by the MPG figure to get L/100km, and the same division works in reverse.