The calculated distance (air line) between Guaçuí and Duque de Caxias is approximately 174 miles respectively 280 kilometers.
By car or train, the actual journey to Duque de Caxias is certainly longer, as only the direct route (as the crow flies) between Guaçuí and Duque de Caxias has been calculated here.
Air line (approximately)
280 kilometers
151 nautical miles