The calculated distance (air line) between Stung Treng and Svay Rieng is approximately 169 miles respectively 272 kilometers.
By car or train, the actual journey to Svay Rieng is certainly longer, as only the direct route (as the crow flies) between Stung Treng and Svay Rieng has been calculated here.
Air line (approximately)
272 kilometers
147 nautical miles