The calculated distance (air line) between Little Bray and An Muileann gCearr is approximately 55 miles respectively 88 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 Little Bray and An Muileann gCearr has been calculated here.
Air line (approximately)
88 kilometers
48 nautical miles