What is Imperial gallon?

An Imperial gallon is a volume unit used in the United Kingdom equal to approximately 4.546 litres. It is larger than the US gallon and is commonly referenced for fuel efficiency (miles per gallon) in the UK.

What is cubic metre?

A cubic metre is the SI unit of volume, equal to a cube with one-metre sides. It is used in construction, water supply, industrial gas storage, and large-scale fluid measurement.

Worked examples

1 Imperial gallon = 0.00454609 cubic metre

1 cubic metre = 1,000 litre

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