The calculated distance (air line) between Khao Yoi and Phasi Charoen is approximately 53 miles respectively 85 kilometers.
By car or train, the actual journey to Phasi Charoen is certainly longer, as only the direct route (as the crow flies) between Khao Yoi and Phasi Charoen has been calculated here.
Air line (approximately)
85 kilometers
46 nautical miles