The calculated distance (air line) between Starokamyshinsk and Chelyabinsk is approximately 10 miles respectively 16 kilometers.
By car or train, the actual journey to Chelyabinsk is certainly longer, as only the direct route (as the crow flies) between Starokamyshinsk and Chelyabinsk has been calculated here.
Air line (approximately)
16 kilometers
9 nautical miles