The calculated distance (air line) between Navapolatsk and Lyepyel’ is approximately 45 miles respectively 73 kilometers.
By car or train, the actual journey to Lyepyel’ is certainly longer, as only the direct route (as the crow flies) between Navapolatsk and Lyepyel’ has been calculated here.
Air line (approximately)
73 kilometers
39 nautical miles