The calculated distance (air line) between Carrigtwohill and An Muileann gCearr is approximately 118 miles respectively 190 kilometers.
By car or train, the actual journey to An Muileann gCearr is certainly longer, as only the direct route (as the crow flies) between Carrigtwohill and An Muileann gCearr has been calculated here.
Air line (approximately)
190 kilometers
103 nautical miles