The calculated distance (air line) between Mawlamyine and Sangkhla Buri is approximately 107 miles respectively 173 kilometers.
By car or train, the actual journey to Sangkhla Buri is certainly longer, as only the direct route (as the crow flies) between Mawlamyine and Sangkhla Buri has been calculated here.
Air line (approximately)
173 kilometers
93 nautical miles