The calculated distance (air line) between Mezhozërnyy and Chelyabinsk is approximately 108 miles respectively 174 kilometers.
By car or train, the actual journey to Chelyabinsk is certainly longer, as only the direct route (as the crow flies) between Mezhozërnyy and Chelyabinsk has been calculated here.
Air line (approximately)
174 kilometers
94 nautical miles