The calculated distance (air line) between Subang Jaya and Simpang Empat is approximately 147 miles respectively 237 kilometers.
By car or train, the actual journey to Simpang Empat is certainly longer, as only the direct route (as the crow flies) between Subang Jaya and Simpang Empat has been calculated here.
Air line (approximately)
237 kilometers
128 nautical miles