The calculated distance (air line) between Uttar Char Fasson and Mymensingh is approximately 176 miles respectively 283 kilometers.
By car or train, the actual journey to Mymensingh is certainly longer, as only the direct route (as the crow flies) between Uttar Char Fasson and Mymensingh has been calculated here.
Air line (approximately)
283 kilometers
153 nautical miles