The calculated distance (air line) between Newtown Trim and Droichead Nua is approximately 26 miles respectively 42 kilometers.
By car or train, the actual journey to Droichead Nua is certainly longer, as only the direct route (as the crow flies) between Newtown Trim and Droichead Nua has been calculated here.
Air line (approximately)
42 kilometers
22 nautical miles