The calculated distance (air line) between Khao Yoi and Phra Pradaeng is approximately 56 miles respectively 90 kilometers.
By car or train, the actual journey to Phra Pradaeng is certainly longer, as only the direct route (as the crow flies) between Khao Yoi and Phra Pradaeng has been calculated here.
Air line (approximately)
90 kilometers
48 nautical miles