The calculated distance (air line) between Ratchaburi and Phra Phutthabat is approximately 105 miles respectively 169 kilometers.
By car or train, the actual journey to Phra Phutthabat is certainly longer, as only the direct route (as the crow flies) between Ratchaburi and Phra Phutthabat has been calculated here.
Air line (approximately)
169 kilometers
91 nautical miles