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Fuel Economy Converter — MPG and L/100km

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Fuel economy

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Fuel economy conversion made easy

Convert between MPG (US), MPG (UK), L/100km and km/L for cars and road trips. Note that L/100km works backwards compared to MPG: a lower number means better fuel economy.

Answer questions like 'what is 30 MPG in L/100km', 'is 6 L/100km good' or 'how do UK and US MPG differ' when comparing cars, rental offers and road-trip fuel budgets across regions.

Common fuel economy conversions

From	Equals
30 MPG (US)	= 7.8405 L/100km
7 L/100km	= 33.6021 MPG (US)
30 MPG (US)	= 36.0285 MPG (UK)
15 km/L	= 6.6667 L/100km

How to convert fuel economy

1Select the fuel economy units to convert between, e.g. MPG and L/100km.
2Type your value in the FROM field — the result appears instantly, no button needed.
3Use the swap button in the middle to reverse the conversion direction.
4Copy the result with one click and use it wherever you like.