The calculated distance (air line) between Merefa and Kryvyy Rih is approximately 179 miles respectively 288 kilometers.
By car or train, the actual journey to Kryvyy Rih is certainly longer, as only the direct route (as the crow flies) between Merefa and Kryvyy Rih has been calculated here.
Air line (approximately)
288 kilometers
156 nautical miles