The calculated distance (air line) between Kinsale and An Muileann gCearr is approximately 135 miles respectively 217 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 Kinsale and An Muileann gCearr has been calculated here.
Air line (approximately)
217 kilometers
117 nautical miles