The calculated distance (air line) between Pathum Thani and Phasi Charoen is approximately 22 miles respectively 35 kilometers.
By car or train, the actual journey to Phasi Charoen is certainly longer, as only the direct route (as the crow flies) between Pathum Thani and Phasi Charoen has been calculated here.
Air line (approximately)
35 kilometers
19 nautical miles