The calculated distance (air line) between Dortmund and Nieuw-Lekkerland is approximately 122 miles respectively 196 kilometers.
By car or train, the actual journey to Nieuw-Lekkerland is certainly longer, as only the direct route (as the crow flies) between Dortmund and Nieuw-Lekkerland has been calculated here.
Air line (approximately)
196 kilometers
106 nautical miles