The calculated distance (air line) between Ouidah and Abomey-Calavi is approximately 20 miles respectively 31 kilometers.
By car or train, the actual journey to Abomey-Calavi is certainly longer, as only the direct route (as the crow flies) between Ouidah and Abomey-Calavi has been calculated here.
Air line (approximately)
31 kilometers
17 nautical miles