The calculated distance (air line) between Mar de Espanha and Duque de Caxias is approximately 66 miles respectively 107 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 Mar de Espanha and Duque de Caxias has been calculated here.
Air line (approximately)
107 kilometers
58 nautical miles