46 mpg to L/100 km

46 US mpg = 5.11 L/100 km = 19.56 km/L = 55.2 UK mpg

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Result

Result–
  • Liters per 100 km–
  • Kilometers per liter–
  • UK mpg–

How to convert 46 mpg to L/100 km

Liters per 100 km is the inverse of miles per gallon, so you divide a constant by the mpg value:

L/100 km = 235.215 ÷ 46 = 5.11

The constant 235.215 comes from 100 km ÷ 1.609344 km per mile × 3.785411 liters per US gallon.

What 46 mpg means in practice

Fuel per 100 miles2.17 gallons
Fuel per 100 km5.11 liters
Fuel for 12,000 miles a year261 gallons
Fuel cost for 12,000 miles at $3.20/gal$835
CO₂ per mile (gasoline)193 g

CO₂ is based on the EPA figure of 8,887 grams of CO₂ per gallon of gasoline. For your own trip costs, use the fuel cost calculator.

Is 46 mpg good?

This is excellent fuel economy, usually reached only by full hybrids.

Values around 46 mpg

US mpgL/100 kmUK mpgkm/L
42 mpg5.60 L/100 km50.4 UK mpg17.86 km/L
43 mpg5.47 L/100 km51.6 UK mpg18.28 km/L
44 mpg5.35 L/100 km52.8 UK mpg18.71 km/L
45 mpg5.23 L/100 km54.0 UK mpg19.13 km/L
46 mpg5.11 L/100 km55.2 UK mpg19.56 km/L
47 mpg5.00 L/100 km56.4 UK mpg19.98 km/L
48 mpg4.90 L/100 km57.6 UK mpg20.41 km/L
49 mpg4.80 L/100 km58.8 UK mpg20.83 km/L
50 mpg4.70 L/100 km60.0 UK mpg21.26 km/L

Frequently asked questions

What is 46 mpg in L/100 km?

46 US mpg equals 5.11 L/100 km (235.215 ÷ 46).

What is 46 mpg in km/L?

46 US mpg equals 19.56 kilometers per liter.

Is 46 mpg good?

This is excellent fuel economy, usually reached only by full hybrids.

What is 46 US mpg in UK mpg?

46 US mpg equals 55.2 imperial (UK) mpg.

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Last updated November 10, 2026