The calculated distance (air line) between Chirongui and M'Tsangamouji is approximately 13 miles respectively 20 kilometers.
By car or train, the actual journey to M'Tsangamouji is certainly longer, as only the direct route (as the crow flies) between Chirongui and M'Tsangamouji has been calculated here.
Air line (approximately)
20 kilometers
11 nautical miles