All Fuel Consumption Units

Convert fuel consumption units instantly. Kilometers per liter, liters per 100km, miles per gallon US and UK in one tool.

How to Convert Fuel Consumption Units?

Fuel consumption can be expressed as distance per volume (km/L, mpg) or volume per distance (L/100km). Converting between these systems requires special attention since they are inversely related. Higher km/L or mpg means better fuel efficiency, while lower L/100km indicates better efficiency. Our converter handles these inverse relationships automatically for accurate comparisons.

Units

Liters per 100 Kilometers (L/100km)

The European standard for measuring fuel consumption. This metric shows how many liters of fuel are needed to travel 100 kilometers. Lower values indicate better fuel efficiency. A typical car consumes 6-8 L/100km, while efficient hybrids can achieve 4-5 L/100km.

Miles per Gallon US (mpg US)

The standard fuel economy measurement in the United States. Based on the US gallon (3.785 liters), it measures how many miles a vehicle can travel on one gallon of fuel. Average new cars achieve 25-30 mpg, while efficient vehicles can exceed 50 mpg.

Miles per Gallon UK (mpg UK)

Used in the United Kingdom and some Commonwealth countries. Based on the Imperial gallon (4.546 liters), which is larger than the US gallon. The same vehicle will show higher mpg UK numbers than mpg US due to the larger gallon size.

Kilometers per Liter (km/L)

Common in Asian countries including Japan, India, and parts of Southeast Asia. This unit shows how many kilometers a vehicle can travel on one liter of fuel. A typical efficient car achieves 12-15 km/L.

Common Fuel Consumption Conversions

FromToValue
10 km/LL/100km10 L/100km
15 km/LL/100km6.67 L/100km
30 mpg USL/100km7.84 L/100km
30 mpg UKL/100km9.42 L/100km
8 L/100kmmpg US29.4 mpg
8 L/100kmmpg UK35.3 mpg
10 L/100kmkm/L10 km/L
25 mpg USkm/L10.63 km/L
40 mpg UKL/100km7.06 L/100km
12 km/Lmpg US28.25 mpg