The calculated distance (air line) between Sufālat Samā’il and Nizwá is approximately 41 miles respectively 65 kilometers.
By car or train, the actual journey to Nizwá is certainly longer, as only the direct route (as the crow flies) between Sufālat Samā’il and Nizwá has been calculated here.
Air line (approximately)
65 kilometers
35 nautical miles