The calculated distance (air line) between Chachoengsao and Phasi Charoen is approximately 43 miles respectively 69 kilometers.
By car or train, the actual journey to Phasi Charoen is certainly longer, as only the direct route (as the crow flies) between Chachoengsao and Phasi Charoen has been calculated here.
Air line (approximately)
69 kilometers
37 nautical miles