The calculated distance (air line) between Kampong Cham and Kampong Speu is approximately 74 miles respectively 119 kilometers.
By car or train, the actual journey to Kampong Speu is certainly longer, as only the direct route (as the crow flies) between Kampong Cham and Kampong Speu has been calculated here.
Air line (approximately)
119 kilometers
64 nautical miles