18 L/100km to MPG (UK)

18 L/100km = 15.7 MPG (UK)

18 L/100km=15.7 MPG (UK)
18 L/100km=13.1 MPG (US)
18 L/100km=5.56 km/L

How to Convert L/100km to MPG (UK)

The conversion is inverse: since L/100km measures fuel per distance and MPG measures distance per fuel, the formula is a division.

  • MPG (UK) = 282.48094 ÷ L/100km

Applying the formula to 18 L/100km: 282.481 ÷ 18 = 15.7 MPG (UK).

Is 18 L/100km good?

18 L/100km corresponds to 15.7 MPG (UK), which is Poor — heavy vehicle or sports car. In US terms this equals 13.1 MPG (US), or 5.56 km/L.

Need a different value? Use our L/100km to MPG (UK) Converter.

Similar Conversions

L/100kmMPG (UK)MPG (US)
13 L/100km 21.7 18.1
14 L/100km 20.2 16.8
15 L/100km 18.8 15.7
16 L/100km 17.7 14.7
17 L/100km 16.6 13.8
19 L/100km 14.9 12.4
20 L/100km 14.1 11.8

Related Fuel Economy Converters

MPG (UK) to L/100km

Reverse conversion: Imperial miles per gallon to litres per 100 km.

L/100km to MPG (US)

Litres per 100 km to US miles per gallon.

MPG (US) to L/100km

US miles per gallon to litres per 100 km.

MPG Calculator

Calculate your car’s MPG from distance and fuel used.
Conversion factors verified against NIST, BIPM Based on SI definitions (BIPM). Last reviewed: March 2026
Adilson Fernandes By Adilson Fernandes
Tiago Fernandes Reviewed by Tiago Fernandes