The calculated distance (air line) between Yuzhnoukrayinsk and Kryve Ozero is approximately 39 miles respectively 63 kilometers.
By car or train, the actual journey to Kryve Ozero is certainly longer, as only the direct route (as the crow flies) between Yuzhnoukrayinsk and Kryve Ozero has been calculated here.
Air line (approximately)
63 kilometers
34 nautical miles