The calculated distance (air line) between Donja Mahala and Mrkonjić Grad is approximately 89 miles respectively 143 kilometers.
By car or train, the actual journey to Mrkonjić Grad is certainly longer, as only the direct route (as the crow flies) between Donja Mahala and Mrkonjić Grad has been calculated here.
Air line (approximately)
143 kilometers
77 nautical miles