The calculated distance (air line) between Saint-Macaire-en-Mauges and Bordeaux is approximately 159 miles respectively 256 kilometers.
By car or train, the actual journey to Bordeaux is certainly longer, as only the direct route (as the crow flies) between Saint-Macaire-en-Mauges and Bordeaux has been calculated here.
Air line (approximately)
256 kilometers
138 nautical miles