The calculated distance (air line) between Kazlų Rūda and Šiauliai is approximately 82 miles respectively 132 kilometers.
By car or train, the actual journey to Šiauliai is certainly longer, as only the direct route (as the crow flies) between Kazlų Rūda and Šiauliai has been calculated here.
Air line (approximately)
132 kilometers
71 nautical miles