The calculated distance (air line) between Obukhivka and Kryvyy Rih is approximately 81 miles respectively 130 kilometers.
By car or train, the actual journey to Kryvyy Rih is certainly longer, as only the direct route (as the crow flies) between Obukhivka and Kryvyy Rih has been calculated here.
Air line (approximately)
130 kilometers
70 nautical miles