The calculated distance (air line) between Kampong Cham and Svay Rieng is approximately 67 miles respectively 107 kilometers.
By car or train, the actual journey to Svay Rieng is certainly longer, as only the direct route (as the crow flies) between Kampong Cham and Svay Rieng has been calculated here.
Air line (approximately)
107 kilometers
58 nautical miles