The calculated distance (air line) between Nurmijärven kirkonkylä and Lahti is approximately 46 miles respectively 74 kilometers.
By car or train, the actual journey to Lahti is certainly longer, as only the direct route (as the crow flies) between Nurmijärven kirkonkylä and Lahti has been calculated here.
Air line (approximately)
74 kilometers
40 nautical miles