The calculated distance (air line) between Cha-am and Mueang Nonthaburi is approximately 82 miles respectively 132 kilometers.
By car or train, the actual journey to Mueang Nonthaburi is certainly longer, as only the direct route (as the crow flies) between Cha-am and Mueang Nonthaburi has been calculated here.
Air line (approximately)
132 kilometers
71 nautical miles