The calculated distance (air line) between Phra Pradaeng and Tha Maka is approximately 54 miles respectively 87 kilometers.
By car or train, the actual journey to Tha Maka is certainly longer, as only the direct route (as the crow flies) between Phra Pradaeng and Tha Maka has been calculated here.
Air line (approximately)
87 kilometers
47 nautical miles