The calculated distance (air line) between Ouderkerk aan de Amstel and Eindhoven is approximately 64 miles respectively 103 kilometers.
By car or train, the actual journey to Eindhoven is certainly longer, as only the direct route (as the crow flies) between Ouderkerk aan de Amstel and Eindhoven has been calculated here.
Air line (approximately)
103 kilometers
55 nautical miles