The calculated distance (air line) between Taunggyi and Taungdwingyi is approximately 111 miles respectively 178 kilometers.
By car or train, the actual journey to Taungdwingyi is certainly longer, as only the direct route (as the crow flies) between Taunggyi and Taungdwingyi has been calculated here.
Air line (approximately)
178 kilometers
96 nautical miles