The calculated distance (air line) between Batu Feringgi and Sungai Petani is approximately 21 miles respectively 33 kilometers.
By car or train, the actual journey to Sungai Petani is certainly longer, as only the direct route (as the crow flies) between Batu Feringgi and Sungai Petani has been calculated here.
Air line (approximately)
33 kilometers
18 nautical miles