The calculated distance (air line) between Jertih and Bukit Mertajam is approximately 141 miles respectively 228 kilometers.
By car or train, the actual journey to Bukit Mertajam is certainly longer, as only the direct route (as the crow flies) between Jertih and Bukit Mertajam has been calculated here.
Air line (approximately)
228 kilometers
123 nautical miles