The calculated distance (air line) between Zmiiv and Kryvyy Rih is approximately 183 miles respectively 294 kilometers.
By car or train, the actual journey to Kryvyy Rih is certainly longer, as only the direct route (as the crow flies) between Zmiiv and Kryvyy Rih has been calculated here.
Air line (approximately)
294 kilometers
159 nautical miles