The calculated distance (air line) between Zrnovci and Gjorče Petro is approximately 57 miles respectively 92 kilometers.
By car or train, the actual journey to Gjorče Petro is certainly longer, as only the direct route (as the crow flies) between Zrnovci and Gjorče Petro has been calculated here.
Air line (approximately)
92 kilometers
50 nautical miles