Fuel Economy Converter

MPG ↔ L/100km — UK and US gallons.

Result

MPG (UK)40
MPG (US)33.31
L/100km7.06
km/L14.16

Fuel Economy Converter — FAQs

MPG to L/100km?

They're inverse — 282.5 ÷ MPG(UK) = L/100km; 235.2 ÷ MPG(US). 40 MPG UK ≈ 7.06 L/100km.

UK vs US MPG?

UK mpg uses imperial gallons (4.546L); US uses smaller US gallons (3.785L) — the same car reads ~20% higher mpg in UK terms.

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