The calculated distance (air line) between Essen and Montigny-lès-Metz is approximately 167 miles respectively 270 kilometers.
By car or train, the actual journey to Montigny-lès-Metz is certainly longer, as only the direct route (as the crow flies) between Essen and Montigny-lès-Metz has been calculated here.
Air line (approximately)
270 kilometers
145 nautical miles