The calculated distance (air line) between Saarijärvi and Nurmijärvi is approximately 156 miles respectively 250 kilometers.
By car or train, the actual journey to Nurmijärvi is certainly longer, as only the direct route (as the crow flies) between Saarijärvi and Nurmijärvi has been calculated here.
Air line (approximately)
250 kilometers
135 nautical miles