The calculated distance (air line) between Sylhet and Maulavi Bāzār is approximately 29 miles respectively 47 kilometers.
By car or train, the actual journey to Maulavi Bāzār is certainly longer, as only the direct route (as the crow flies) between Sylhet and Maulavi Bāzār has been calculated here.
Air line (approximately)
47 kilometers
25 nautical miles