The calculated distance (air line) between Shahrak-e Emām Ḩasan and Qazvin is approximately 92 miles respectively 149 kilometers.
By car or train, the actual journey to Qazvin is certainly longer, as only the direct route (as the crow flies) between Shahrak-e Emām Ḩasan and Qazvin has been calculated here.
Air line (approximately)
149 kilometers
80 nautical miles