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