28.2257
mpg
33.8977
mpg
8.3333
L/100km
1,200
km/100L
28.2257
mpg
33.8977
mpg
8.3333
L/100km
1,200
km/100L
The Kilometers per Liter to Miles per Gallon Converter converts the metric fuel efficiency unit (km/L) to US miles per gallon (MPG) and liters per 100 kilometers. The km/L standard is primarily used in Japan, India, South Korea, and several other Asian and Latin American countries, making this converter essential for comparing vehicles across these markets with North American or European standards.
The conversion factor is: 1 km/L = 2.35215 MPG (US). This combines two conversions: 1 mile = 1.60934 km and 1 US gallon = 3.78541 L, giving 3.78541/1.60934 = 2.35215. So a car rated at 15 km/L in Japan achieves 35.3 MPG in the US — quite efficient. The typical range for modern vehicles is 8-25 km/L (18.8-58.8 MPG).
Japan's JC08 and newer WLTC test cycles measure fuel economy in km/L. Japanese Kei cars (mini vehicles) commonly achieve 20-30 km/L, while standard sedans range from 12-20 km/L. Comparing these figures to US EPA ratings or European L/100 km requires accurate conversion, which this tool provides.
The converter also outputs L/100 km (simply 100 ÷ km/L) for European comparison. This covers the three major fuel economy standards worldwide in a single tool.
The formulas: MPG (US) = km/L × 2.35215 and L/100 km = 100 / km/L. The factor 2.35215 = 3.78541 (L per US gallon) / 1.60934 (km per mile).
Reference points: 10 km/L = 23.5 MPG = 10 L/100km, 15 km/L = 35.3 MPG = 6.67 L/100km, 20 km/L = 47.0 MPG = 5.0 L/100km, 25 km/L = 58.8 MPG = 4.0 L/100km.
Inputs
Results
15 km/L = 35.3 MPG
Inputs
Results
25 km/L = 58.8 MPG
Multiply by 2.35215 for US MPG. Example: 15 km/L × 2.35215 = 35.3 MPG.
10 km/L = 23.5 MPG (US). This is typical for older or less efficient vehicles.
20 km/L = 47.0 MPG (US). This is very efficient — typical for modern hybrids and efficient compact cars.
Japan, India, South Korea, Brazil, and several other countries use km/L as the primary fuel economy unit.
They are inversely related: L/100 km = 100 / km/L. A car getting 20 km/L uses 5 L/100 km. Both are metric but express efficiency differently.
Above 18 km/L is excellent, 13-18 is good, 10-13 is average, below 10 is poor for a passenger vehicle. Japanese Kei cars achieve 20-30+ km/L.
JC08 is Japan's fuel economy test cycle, used since 2011. It is being replaced by WLTC (Worldwide harmonized Light vehicles Test Cycle) for better real-world accuracy.
Hydrogen fuel cell vehicles use km/kg H₂. The Toyota Mirai achieves about 152 km/kg, equivalent to roughly 38 km/L gasoline in energy terms.
Multiply km/L by 2.82481 for Imperial MPG. This is higher than US MPG because the Imperial gallon is larger.
Cost per trip = distance (km) / km/L × fuel price per liter. Example: 500 km at 15 km/L at $1.50/L = 500/15 × 1.50 = $50.
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