The calculated distance (air line) between Wichian Buri and Phasi Charoen is approximately 142 miles respectively 228 kilometers.
By car or train, the actual journey to Phasi Charoen is certainly longer, as only the direct route (as the crow flies) between Wichian Buri and Phasi Charoen has been calculated here.
Air line (approximately)
228 kilometers
123 nautical miles