The calculated distance (air line) between Kadiyivka and Chasiv Yar is approximately 36 miles respectively 58 kilometers.
By car or train, the actual journey to Chasiv Yar is certainly longer, as only the direct route (as the crow flies) between Kadiyivka and Chasiv Yar has been calculated here.
Air line (approximately)
58 kilometers
31 nautical miles