The calculated distance (air line) between Maladziečna and Nyasvizh is approximately 76 miles respectively 123 kilometers.
By car or train, the actual journey to Nyasvizh is certainly longer, as only the direct route (as the crow flies) between Maladziečna and Nyasvizh has been calculated here.
Air line (approximately)
123 kilometers
66 nautical miles