The calculated distance (air line) between Dawei and Doembang Nangbuat is approximately 138 miles respectively 222 kilometers.
By car or train, the actual journey to Doembang Nangbuat is certainly longer, as only the direct route (as the crow flies) between Dawei and Doembang Nangbuat has been calculated here.
Air line (approximately)
222 kilometers
120 nautical miles