The calculated distance (air line) between São João Nepomuceno and Duque de Caxias is approximately 88 miles respectively 142 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 São João Nepomuceno and Duque de Caxias has been calculated here.
Air line (approximately)
142 kilometers
77 nautical miles