The calculated distance (air line) between Tŏkch’ŏn and Paech’ŏn-ŭp is approximately 122 miles respectively 196 kilometers.
By car or train, the actual journey to Paech’ŏn-ŭp is certainly longer, as only the direct route (as the crow flies) between Tŏkch’ŏn and Paech’ŏn-ŭp has been calculated here.
Air line (approximately)
196 kilometers
106 nautical miles