The calculated distance (air line) between Carrick-on-Suir and Kilkenny is approximately 22 miles respectively 36 kilometers.
By car or train, the actual journey to Kilkenny is certainly longer, as only the direct route (as the crow flies) between Carrick-on-Suir and Kilkenny has been calculated here.
Air line (approximately)
36 kilometers
19 nautical miles