The calculated distance (air line) between Korsun-Shevchenkivskyy and Obukhiv is approximately 55 miles respectively 89 kilometers.
By car or train, the actual journey to Obukhiv is certainly longer, as only the direct route (as the crow flies) between Korsun-Shevchenkivskyy and Obukhiv has been calculated here.
Air line (approximately)
89 kilometers
48 nautical miles