The calculated distance (air line) between Ramat HaSharon and Kiryat Gat is approximately 37 miles respectively 60 kilometers.
By car or train, the actual journey to Kiryat Gat is certainly longer, as only the direct route (as the crow flies) between Ramat HaSharon and Kiryat Gat has been calculated here.
Air line (approximately)
60 kilometers
32 nautical miles