The calculated distance (air line) between Kowŏn-ŭp and Anbyŏn-ŭp is approximately 31 miles respectively 50 kilometers.
By car or train, the actual journey to Anbyŏn-ŭp is certainly longer, as only the direct route (as the crow flies) between Kowŏn-ŭp and Anbyŏn-ŭp has been calculated here.