The calculated distance (air line) between Carrick-on-Suir and Droichead Nua is approximately 63 miles respectively 101 kilometers.
By car or train, the actual journey to Droichead Nua is certainly longer, as only the direct route (as the crow flies) between Carrick-on-Suir and Droichead Nua has been calculated here.
Air line (approximately)
101 kilometers
55 nautical miles