The calculated distance (air line) between Shahrak-e Emām Ḩasan and Sari is approximately 121 miles respectively 195 kilometers.
By car or train, the actual journey to Sari is certainly longer, as only the direct route (as the crow flies) between Shahrak-e Emām Ḩasan and Sari has been calculated here.
Air line (approximately)
195 kilometers
105 nautical miles