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Liters Per 100 Km to US Miles Per Gallon

8 liters per 100 km equals 29.402 US miles per gallon. The two run in opposite directions, so a higher figure on one side is a lower figure on the other.

MPG (US) = 235.2145833 ÷ L/100km

Fuel Economy Conversion

Vehicle Fuel Economy Examples

Fuel Economy Reference Guide

Understanding Fuel Economy Units

MPG (Miles per Gallon): Distance traveled per unit of fuel

L/100km: Fuel consumed per 100 kilometers (lower is better)

km/L: Distance per liter (higher is better)

US vs UK Gallons: US gallon = 3.785L, UK gallon = 4.546L

Inverse Relationship: Higher MPG = Lower L/100km

Global Standards: Most countries use L/100km

Fuel Efficiency Categories

Excellent: 40+ MPG (5.9 L/100km or less)

Good: 30-39 MPG (6.0-7.8 L/100km)

Average: 20-29 MPG (8.1-11.8 L/100km)

Below Average: 15-19 MPG (12.4-15.7 L/100km)

Poor: Under 15 MPG (over 15.7 L/100km)

Hybrid/Electric: 50+ MPG equivalent

Conversion Quick Reference

• 30 MPG (US) ≈ 7.84 L/100km ≈ 12.75 km/L

• 40 MPG (US) ≈ 5.88 L/100km ≈ 17.01 km/L

• 50 MPG (US) ≈ 4.70 L/100km ≈ 21.26 km/L

• 6 L/100km ≈ 39.2 MPG (US) ≈ 16.67 km/L

Liters Per 100 Km to US Miles Per Gallon Conversion Table

L/100kmMPG (US)
378.4049
458.8036
547.0429
639.2024
733.6021
829.4018
926.135
1023.5215
1121.3831
1219.6012
1416.801
1614.7009
1813.0675
2011.7607

About This Conversion

Liters per 100 km to US miles per gallon converts a European or Asian efficiency figure into the number US buyers compare cars by. Divide 235.2145833 by the L/100km value.

The inversion flips which end of the scale is crowded. Between 4 and 6 L/100km, a range covering most modern small cars, the MPG figures spread from 59 to 39, a twenty-point gap. Between 15 and 17, the MPG figures differ by only two. Small differences in L/100km at the efficient end look dramatic in MPG.

Frequently Asked Questions

What is 8 L/100km in MPG?

8 L/100km is 29.4 US MPG.

What is 5 L/100km in MPG?

5 L/100km is 47 US MPG.

What is the formula?

US MPG = 235.2145833 ÷ L/100km.

Does this give UK MPG?

No. UK MPG uses the larger imperial gallon, so the constant is 282.48 instead.

Worth Knowing

US Gallon vs Imperial Gallon

A US gallon is 3.785411784 litres and an imperial (UK) gallon is 4.54609 litres, making the imperial gallon about 20.1 percent larger.