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The Red Sea has a surface area of 438,000 square kilometres, and an average depth of 490 metres. That means the volume of water is 214,620 cubic kilometres.

A cubic kilometre is 109 cubic metres or 1012 litres. An imperial gallon is 4.54 litres, so a cubic kilometre is 2.2 x 1011 gallons.

So the Red Sea is 4.72 x 1016 gallons.

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12y ago

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