The calculated distance (air line) between Qazvin and Moḩammad Shahr is approximately 62 miles respectively 100 kilometers.
By car or train, the actual journey to Moḩammad Shahr is certainly longer, as only the direct route (as the crow flies) between Qazvin and Moḩammad Shahr has been calculated here.
Air line (approximately)
100 kilometers
54 nautical miles