The calculated distance (air line) between Mbanza Kongo and Barra do Dande is approximately 164 miles respectively 263 kilometers.
By car or train, the actual journey to Barra do Dande is certainly longer, as only the direct route (as the crow flies) between Mbanza Kongo and Barra do Dande has been calculated here.
Air line (approximately)
263 kilometers
142 nautical miles