The calculated distance (air line) between Efon-Alaaye and Nnewi is approximately 178 miles respectively 286 kilometers.
By car or train, the actual journey to Nnewi is certainly longer, as only the direct route (as the crow flies) between Efon-Alaaye and Nnewi has been calculated here.
Air line (approximately)
286 kilometers
154 nautical miles