What does 200000 cubic tonnes equal in pounds?

Answer 1

I don't know what you mean by a cubic tonne - a tonne is a measure of mass/weight and it makes no sense to give it two or more dimensions, unlike a length (which has one dimension), an area (which has two dimensions, and for a rectangle is a length times another length to give a square unit), or a volume (which has three dimensions, and for a cuboid is a length times another length times another length to give a cubic unit).

Density is in a mass unit divided by a cubic unit, eg it could have units of "tonnes per cubic metre".

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Assuming you meant:

What is 200000 tonnes in pounds, then:

1 kg ≈ 2.205 lb

1 tonne = 1000 kg ≈ 1000 × 2.205 lb = 2205 lb

→ 200,000 tonnes ≈ 200,000 × 2205 lb = 441,000,000 lb

Answer 2

There is no such measurement unit as a cubic tonne.

Answer 3

There is no such thing as a "cubic ton".