The calculated distance (air line) between Bačko Petrovo Selo and Valjevo is approximately 99 miles respectively 160 kilometers.
By car or train, the actual journey to Valjevo is certainly longer, as only the direct route (as the crow flies) between Bačko Petrovo Selo and Valjevo has been calculated here.
Air line (approximately)
160 kilometers
86 nautical miles