The calculated distance (air line) between Mahārājganj and Parshādepur is approximately 25 miles respectively 41 kilometers.
By car or train, the actual journey to Parshādepur is certainly longer, as only the direct route (as the crow flies) between Mahārājganj and Parshādepur has been calculated here.
Air line (approximately)
41 kilometers
22 nautical miles