The calculated distance (air line) between Grand-Popo and Ado-Odo is approximately 80 miles respectively 129 kilometers.
By car or train, the actual journey to Ado-Odo is certainly longer, as only the direct route (as the crow flies) between Grand-Popo and Ado-Odo has been calculated here.
Air line (approximately)
129 kilometers
69 nautical miles