The calculated distance (air line) between Areaks Tnaot and Kampong Cham is approximately 28 miles respectively 46 kilometers.
By car or train, the actual journey to Kampong Cham is certainly longer, as only the direct route (as the crow flies) between Areaks Tnaot and Kampong Cham has been calculated here.
Air line (approximately)
46 kilometers
25 nautical miles