The calculated distance (air line) between Smarhoń and Dzyarzhynsk is approximately 63 miles respectively 101 kilometers.
By car or train, the actual journey to Dzyarzhynsk is certainly longer, as only the direct route (as the crow flies) between Smarhoń and Dzyarzhynsk has been calculated here.
Air line (approximately)
101 kilometers
54 nautical miles