The calculated distance (air line) between Kaštel Kambelovac and Petrinja is approximately 131 miles respectively 210 kilometers.
By car or train, the actual journey to Petrinja is certainly longer, as only the direct route (as the crow flies) between Kaštel Kambelovac and Petrinja has been calculated here.
Air line (approximately)
210 kilometers
113 nautical miles