The calculated distance (air line) between Thaton and Mawlamyinegyunn is approximately 144 miles respectively 232 kilometers.
By car or train, the actual journey to Mawlamyinegyunn is certainly longer, as only the direct route (as the crow flies) between Thaton and Mawlamyinegyunn has been calculated here.
Air line (approximately)
232 kilometers
125 nautical miles