The calculated distance (air line) between Mueang Nonthaburi and Chon Buri is approximately 47 miles respectively 75 kilometers.
By car or train, the actual journey to Chon Buri is certainly longer, as only the direct route (as the crow flies) between Mueang Nonthaburi and Chon Buri has been calculated here.
Air line (approximately)
75 kilometers
41 nautical miles