The calculated distance (air line) between Elói Mendes and Duque de Caxias is approximately 165 miles respectively 266 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 Elói Mendes and Duque de Caxias has been calculated here.
Air line (approximately)
266 kilometers
144 nautical miles