The calculated distance (air line) between Almere Stad and Alphen aan den Rijn is approximately 29 miles respectively 47 kilometers.
By car or train, the actual journey to Alphen aan den Rijn is certainly longer, as only the direct route (as the crow flies) between Almere Stad and Alphen aan den Rijn has been calculated here.
Air line (approximately)
47 kilometers
25 nautical miles