The calculated distance (air line) between Reẖovot and Hod HaSharon is approximately 19 miles respectively 30 kilometers.
By car or train, the actual journey to Hod HaSharon is certainly longer, as only the direct route (as the crow flies) between Reẖovot and Hod HaSharon has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles