centimeter of water at 4 degrees Celsius to millimeter of water at 4 degrees Celsius Home PRESSURE centimeter of water at 4 degrees Celsius to millimeter of water at 4 degrees Celsius Batch convert millimeter of water at 4 degrees Celsius mmH2O centimeter of water at 4 degrees Celsius cmH2O millimeter of water at 4 degrees Celsius mmH2O centimeter of water at 4 degrees Celsius cmH2O