The calculated distance (air line) between Pathum Thani and Chom Thong is approximately 23 miles respectively 38 kilometers.
By car or train, the actual journey to Chom Thong is certainly longer, as only the direct route (as the crow flies) between Pathum Thani and Chom Thong has been calculated here.
Air line (approximately)
38 kilometers
20 nautical miles