The calculated distance (air line) between Nurmijärven kirkonkylä and Kouvola is approximately 70 miles respectively 113 kilometers.
By car or train, the actual journey to Kouvola is certainly longer, as only the direct route (as the crow flies) between Nurmijärven kirkonkylä and Kouvola has been calculated here.
Air line (approximately)
113 kilometers
61 nautical miles