The calculated distance (air line) between Gorom-Gorom and Ouahigouya is approximately 158 miles respectively 255 kilometers.
By car or train, the actual journey to Ouahigouya is certainly longer, as only the direct route (as the crow flies) between Gorom-Gorom and Ouahigouya has been calculated here.
Air line (approximately)
255 kilometers
137 nautical miles