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40 mpg to L/100km

40 mpg = 5.88 L/100km

Also: 17.01 km/L (kmpl)

mpgL/100kmkm/L
346.9214.45
366.5315.31
386.1916.16
405.8817.01
425.617.86
445.3518.71
465.1119.56
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5.8804 L/100km
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40 mpg = 5.88 L/100km12:00:00 AM
Unit Information

Metric Units

International System of Units (SI) measurements

L/100km
metric
Liters per 100 Kilometers
Metric fuel consumption (lower values = better efficiency)
km/L
metric
Kilometers per Liter
Metric fuel efficiency (higher values = better efficiency)
L/km
metric
Liters per Kilometer
European fuel consumption (lower values = better efficiency)

Imperial Units

Traditional British and American measurements

mpg
imperial
Miles per Gallon
US fuel efficiency (higher values = better efficiency)
mpg (UK)
imperial
Miles per Gallon (UK)
UK fuel efficiency (higher values = better efficiency)
gal/mi
imperial
Gallons per Mile
US fuel consumption (lower values = better efficiency)
gal/100mi
imperial
Gallons per 100 Miles
US fuel consumption per 100 miles
km/gal
imperial
Kilometers per Gallon
Hybrid metric-imperial efficiency (higher values = better efficiency)
Preferences

Formula

mpg → L/100km: L/100km = 235.215 ÷ mpg
mpg → km/L (kmpl): km/L = mpg × 0.4251
L/100km → mpg: mpg = 235.215 ÷ L/100km

These formulas use US gallons. UK (imperial) mpg uses a larger gallon (4.546 L vs 3.785 L), so UK 50 mpg ≈ 5.65 L/100km rather than 4.70 L/100km.

← All fuel consumption conversions (mpg, L/100km, km/L, UK mpg)