The calculated distance (air line) between Radaškovičy and Navapolatsk is approximately 109 miles respectively 176 kilometers.
By car or train, the actual journey to Navapolatsk is certainly longer, as only the direct route (as the crow flies) between Radaškovičy and Navapolatsk has been calculated here.
Air line (approximately)
176 kilometers
95 nautical miles