The calculated distance (air line) between Bačko Petrovo Selo and Prokuplje is approximately 186 miles respectively 300 kilometers.
By car or train, the actual journey to Prokuplje is certainly longer, as only the direct route (as the crow flies) between Bačko Petrovo Selo and Prokuplje has been calculated here.
Air line (approximately)
300 kilometers
162 nautical miles