The calculated distance (air line) between Gayéri and Fada N'gourma is approximately 42 miles respectively 67 kilometers.
By car or train, the actual journey to Fada N'gourma is certainly longer, as only the direct route (as the crow flies) between Gayéri and Fada N'gourma has been calculated here.
Air line (approximately)
67 kilometers
36 nautical miles