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