The calculated distance (air line) between Kamyanka-Dniprovska and Poltava is approximately 145 miles respectively 233 kilometers.
By car or train, the actual journey to Poltava is certainly longer, as only the direct route (as the crow flies) between Kamyanka-Dniprovska and Poltava has been calculated here.
Air line (approximately)
233 kilometers
126 nautical miles