The calculated distance (air line) between Bang Mun Nak and Phasi Charoen is approximately 160 miles respectively 257 kilometers.
By car or train, the actual journey to Phasi Charoen is certainly longer, as only the direct route (as the crow flies) between Bang Mun Nak and Phasi Charoen has been calculated here.
Air line (approximately)
257 kilometers
139 nautical miles