The number of cubic meters (m³) in a ton will depend on the substance: For water, there's one cubic meter in a metric ton and 0.9072 cubic meters per US short ton;; For seawater, there are 0.9756 m³ per metric ton and 0.885 m³ per US short ton;; For soil, there's between 0.625-0.9091 m³ per metric ton and between 0.567-0.8247 m³ per US short …