Convert L/100km ⇄ MPG ⇄ km/L and get cost per 100 km. Free
MPG (UK) = 282.481 ÷ (L/100km); MPG (US) = 235.215 ÷ (L/100km). This tool does it instantly.
For a modern diesel, 4.5-6 L/100km is efficient; petrol 6-8 L/100km. A remap can lower it a few percent.
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