The calculated distance (air line) between Klang and Bukit Mertajam is approximately 174 miles respectively 280 kilometers.
By car or train, the actual journey to Bukit Mertajam is certainly longer, as only the direct route (as the crow flies) between Klang and Bukit Mertajam has been calculated here.
Air line (approximately)
280 kilometers
151 nautical miles