The calculated distance (air line) between Mevasseret Tsiyyon and Bet Shemesh is approximately 10 miles respectively 17 kilometers.
By car or train, the actual journey to Bet Shemesh is certainly longer, as only the direct route (as the crow flies) between Mevasseret Tsiyyon and Bet Shemesh has been calculated here.
Air line (approximately)
17 kilometers
9 nautical miles