The calculated distance (air line) between Manaus and Novo Aripuanã is approximately 142 miles respectively 228 kilometers.
By car or train, the actual journey to Novo Aripuanã is certainly longer, as only the direct route (as the crow flies) between Manaus and Novo Aripuanã has been calculated here.
Air line (approximately)
228 kilometers
123 nautical miles