The calculated distance (air line) between Parbatipur and Sānkrāil is approximately 8 miles respectively 13 kilometers.
By car or train, the actual journey to Sānkrāil is certainly longer, as only the direct route (as the crow flies) between Parbatipur and Sānkrāil has been calculated here.
Air line (approximately)
13 kilometers
7 nautical miles