The calculated distance (air line) between Fort-de-France and Rivière-Pilote is approximately 14 miles respectively 23 kilometers.
By car or train, the actual journey to Rivière-Pilote is certainly longer, as only the direct route (as the crow flies) between Fort-de-France and Rivière-Pilote has been calculated here.
Air line (approximately)
23 kilometers
12 nautical miles