The calculated distance (air line) between Šturlić and Mrkonjić Grad is approximately 78 miles respectively 126 kilometers.
By car or train, the actual journey to Mrkonjić Grad is certainly longer, as only the direct route (as the crow flies) between Šturlić and Mrkonjić Grad has been calculated here.
Air line (approximately)
126 kilometers
68 nautical miles