The calculated distance (air line) between Pematangsiantar and Teluk Intan is approximately 153 miles respectively 247 kilometers.
By car or train, the actual journey to Teluk Intan is certainly longer, as only the direct route (as the crow flies) between Pematangsiantar and Teluk Intan has been calculated here.
Air line (approximately)
247 kilometers
133 nautical miles