The calculated distance (air line) between Lappeenranta and Nurmijärvi is approximately 121 miles respectively 195 kilometers.
By car or train, the actual journey to Nurmijärvi is certainly longer, as only the direct route (as the crow flies) between Lappeenranta and Nurmijärvi has been calculated here.
Air line (approximately)
195 kilometers
105 nautical miles