The calculated distance (air line) between Mechelen-aan-de-Maas and Antwerpen is approximately 59 miles respectively 95 kilometers.
By car or train, the actual journey to Antwerpen is certainly longer, as only the direct route (as the crow flies) between Mechelen-aan-de-Maas and Antwerpen has been calculated here.
Air line (approximately)
95 kilometers
51 nautical miles