The calculated distance (air line) between Ísafjörður and Hafnarfjörður is approximately 143 miles respectively 230 kilometers.
By car or train, the actual journey to Hafnarfjörður is certainly longer, as only the direct route (as the crow flies) between Ísafjörður and Hafnarfjörður has been calculated here.
Air line (approximately)
230 kilometers
124 nautical miles