The calculated distance (air line) between Miraí and Duque de Caxias is approximately 119 miles respectively 191 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 Miraí and Duque de Caxias has been calculated here.
Air line (approximately)
191 kilometers
103 nautical miles