The calculated distance (air line) between Plyeshchanitsy and Navapolatsk is approximately 82 miles respectively 133 kilometers.
By car or train, the actual journey to Navapolatsk is certainly longer, as only the direct route (as the crow flies) between Plyeshchanitsy and Navapolatsk has been calculated here.
Air line (approximately)
133 kilometers
72 nautical miles