The calculated distance (air line) between Pematangsiantar and Teluk Nibung is approximately 52 miles respectively 83 kilometers.
By car or train, the actual journey to Teluk Nibung is certainly longer, as only the direct route (as the crow flies) between Pematangsiantar and Teluk Nibung has been calculated here.
Air line (approximately)
83 kilometers
45 nautical miles