The calculated distance (air line) between Guapimirim and Duque de Caxias is approximately 27 miles respectively 44 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 Guapimirim and Duque de Caxias has been calculated here.
Air line (approximately)
44 kilometers
24 nautical miles