The calculated distance (air line) between Novolukoml’ and Navapolatsk is approximately 64 miles respectively 103 kilometers.
By car or train, the actual journey to Navapolatsk is certainly longer, as only the direct route (as the crow flies) between Novolukoml’ and Navapolatsk has been calculated here.
Air line (approximately)
103 kilometers
56 nautical miles