Stress equals plate tectonic force; kilobar (kb) and megaPascal (MPa) where 1 kbar = 100 MPa

Stress equals plate tectonic force; kilojoules (kJ) and kiloWatts (kW) where 1 kJ = 100 kW

Stress is force per unit area, a definition of pressure; kilobar (kb) and megaPascal (MPa) where 1 kbar = 100 MPa

Stress is force per unit volume, a definition of megapressure; kilobar (kb) and megaPascal (MPa) where 1 kbar = 100 MPa

Stress is the same as deformation of rocks and is dimensionless (no units)