40 MPG (US) to Liters per 100km

5.8804 L/100km

40 mpg = 5.8804 L/100km

40 mpg = 5.8804 L/100km

Fuel consumption units use an inverse relationship:

40 mpg = 5.8804 L/100km

Reverse: 5.8804 liters per 100 km = 39.9997 miles per gallon (US)

miles per gallon (US) (mpg) liters per 100 km (L/100km)
40 5.8804
20 11.7607
25 9.4086
30 7.8405
35 6.7204
50 4.7043
60 3.9202

miles per gallon (US) (mpg)

Miles Per Gallon (US) is the standard efficiency metric in the United States. It measures how far a vehicle can travel on one US gallon of fuel. The Corporate Average Fuel Economy (CAFE) standards use this unit to regulate automakers. Higher is better.

A Toyota Prius gets about 50 MPG (US).

Commonly used in: US Car window stickers, EPA ratings, US auto reviews, Fuel economy tracking apps.

liters per 100 km (L/100km)

Liters per 100km is the standard in Europe, Canada, Australia, and most of the world. Unlike MPG, this measures consumption, not economy. Lower is better. It answers the question: 'How much fuel do I need to drive 100 kilometers?'

A modern hybrid uses about 4-5 L/100km.

Commonly used in: European car labels, Canadian fuel guides, Australian car specs, Global fleet management.