The calculated distance (air line) between Yeoju and Uijeongbu-si is approximately 45 miles respectively 72 kilometers.
By car or train, the actual journey to Uijeongbu-si is certainly longer, as only the direct route (as the crow flies) between Yeoju and Uijeongbu-si has been calculated here.
Air line (approximately)
72 kilometers
39 nautical miles