The calculated distance (air line) between Kham Sakae Saeng and Chon Buri is approximately 158 miles respectively 254 kilometers.
By car or train, the actual journey to Chon Buri is certainly longer, as only the direct route (as the crow flies) between Kham Sakae Saeng and Chon Buri has been calculated here.
Air line (approximately)
254 kilometers
137 nautical miles