The calculated distance (air line) between Areaks Tnaot and Kampong Speu is approximately 98 miles respectively 158 kilometers.
By car or train, the actual journey to Kampong Speu is certainly longer, as only the direct route (as the crow flies) between Areaks Tnaot and Kampong Speu has been calculated here.
Air line (approximately)
158 kilometers
85 nautical miles