The calculated distance (air line) between Qiryat Ye‘arim and Rosh Ha‘Ayin is approximately 21 miles respectively 35 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 Qiryat Ye‘arim and Rosh Ha‘Ayin has been calculated here.
Air line (approximately)
35 kilometers
19 nautical miles