The calculated distance (air line) between Kópavogur and Ísafjörður is approximately 140 miles respectively 226 kilometers.
By car or train, the actual journey to Ísafjörður is certainly longer, as only the direct route (as the crow flies) between Kópavogur and Ísafjörður has been calculated here.
Air line (approximately)
226 kilometers
122 nautical miles