How many kilograms in 7 cubic feet?

Answer 1

That completely depends on what substance fills the cubic feet.

If it's air, then there are very few kilograms of mass in that space.

If it's water, then there are about 453 kilograms of mass in that space.

It's it's stones or gold, then there are a lot more kilograms of mass in it.

If the cubic feet are empty, then there are no kilograms in them at all.

Answer 2

Depends on the density of the material that takes up that space. 7 cubic ft of lead weighs more than 7 cubic ft of styrofoam

Answer 3

You can't convert between units that measure completely different things. Kilogram is a unit of mass, cubic foot is a unit of volume.