Convert 1 square meters to cubic meters?

Answer 1

There is no answer to this, a "square" (I assume a square meter) is a measure of area (2-dimensions), whereas a cubic meter is a measure of volume (3-dimensions).

E.g.
Suppose a piece of wood has a length and width of 1 meter each. This makes the wood 1 square meter in size.
If you take 6 of these pieces of wood and build a box, the box will have length, width, and height of 1 meter (i.e. a cube). The box has a volume of 1 cubic meter.

Answer 2

It is not possible.