The calculated distance (air line) between Breuillet and Paris 13 Gobelins is approximately 20 miles respectively 32 kilometers.
By car or train, the actual journey to Paris 13 Gobelins is certainly longer, as only the direct route (as the crow flies) between Breuillet and Paris 13 Gobelins has been calculated here.
Air line (approximately)
32 kilometers
17 nautical miles