The calculated distance (air line) between Bu'ayna-Nujaydat and Rosh Ha‘Ayin is approximately 55 miles respectively 88 kilometers.
By car or train, the actual journey to Rosh Ha‘Ayin is certainly longer, as only the direct route (as the crow flies) between Bu'ayna-Nujaydat and Rosh Ha‘Ayin has been calculated here.
Air line (approximately)
88 kilometers
48 nautical miles