The calculated distance (air line) between Preaek Khsay Kha and Kampot is approximately 87 miles respectively 141 kilometers.
By car or train, the actual journey to Kampot is certainly longer, as only the direct route (as the crow flies) between Preaek Khsay Kha and Kampot has been calculated here.
Air line (approximately)
141 kilometers
76 nautical miles