How many cubic meter en a ton?

Answer 1

I presume you are referring to water. A cubic meter of pure water at +4degrees C weighs 1000 kg and is the basis of the definition of a metric tonne.

This equality is only true at +4degrees Celsius, when pure water is at its highest density.

Answer 2

There is no direct conversion.

A cubic metre is a unit of volume, a ton is a unit of mass.