The calculated distance (air line) between Edenderry and Dún Laoghaire is approximately 38 miles respectively 61 kilometers.
By car or train, the actual journey to Dún Laoghaire is certainly longer, as only the direct route (as the crow flies) between Edenderry and Dún Laoghaire has been calculated here.
Air line (approximately)
61 kilometers
33 nautical miles