The calculated distance (air line) between Sauðárkrókur and Akranes is approximately 121 miles respectively 195 kilometers.
By car or train, the actual journey to Akranes is certainly longer, as only the direct route (as the crow flies) between Sauðárkrókur and Akranes has been calculated here.
Air line (approximately)
195 kilometers
105 nautical miles