The calculated distance (air line) between Preaek Khsay Kha and Smach Mean Chey is approximately 154 miles respectively 247 kilometers.
By car or train, the actual journey to Smach Mean Chey is certainly longer, as only the direct route (as the crow flies) between Preaek Khsay Kha and Smach Mean Chey has been calculated here.
Air line (approximately)
247 kilometers
133 nautical miles