The calculated distance (air line) between Phumĭ Véal Srê and Siem Reap is approximately 176 miles respectively 283 kilometers.
By car or train, the actual journey to Siem Reap is certainly longer, as only the direct route (as the crow flies) between Phumĭ Véal Srê and Siem Reap has been calculated here.
Air line (approximately)
283 kilometers
153 nautical miles