The calculated distance (air line) between Mīāndoāb and Baynjiwayn is approximately 93 miles respectively 150 kilometers.
By car or train, the actual journey to Baynjiwayn is certainly longer, as only the direct route (as the crow flies) between Mīāndoāb and Baynjiwayn has been calculated here.
Air line (approximately)
150 kilometers
81 nautical miles