The calculated distance (air line) between Jalasjärvi and Nurmijärvi is approximately 156 miles respectively 251 kilometers.
By car or train, the actual journey to Nurmijärvi is certainly longer, as only the direct route (as the crow flies) between Jalasjärvi and Nurmijärvi has been calculated here.
Air line (approximately)
251 kilometers
136 nautical miles