# The number of cubic units needed to fill a space is called?

That's the "volume" of the space.

### What is math formula to convert metric ton to cubic meter of basalt rock which has specific gravity of 2.7?

1 cubic meter of space is 1,000 liters of space. -- 1 liter of water has 1 kilogram of mass. -- 1,000 liters of water has 1,000 kilograms of mass = 1 metric ton -- 1 metric ton of water fills 1 cubic meter of space. -- A substance with a specific gravity of 2.7 packs 2.7 times as much mass into the same space. -- 2.7 metric tons of it pack into 1…