The calculated distance (air line) between Berkel en Rodenrijs and Heerlen is approximately 100 miles respectively 161 kilometers.
By car or train, the actual journey to Heerlen is certainly longer, as only the direct route (as the crow flies) between Berkel en Rodenrijs and Heerlen has been calculated here.
Air line (approximately)
161 kilometers
87 nautical miles