The calculated distance (air line) between Nong Kung Si and Huai Mek is approximately 6 miles respectively 10 kilometers.
By car or train, the actual journey to Huai Mek is certainly longer, as only the direct route (as the crow flies) between Nong Kung Si and Huai Mek has been calculated here.
Air line (approximately)
10 kilometers
5 nautical miles