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