The calculated distance (air line) between Mouyondzi and Pointe-Noire is approximately 152 miles respectively 245 kilometers.
By car or train, the actual journey to Pointe-Noire is certainly longer, as only the direct route (as the crow flies) between Mouyondzi and Pointe-Noire has been calculated here.
Air line (approximately)
245 kilometers
132 nautical miles