The calculated distance (air line) between Ouro Branco and Nova Iguaçu is approximately 155 miles respectively 250 kilometers.
By car or train, the actual journey to Nova Iguaçu is certainly longer, as only the direct route (as the crow flies) between Ouro Branco and Nova Iguaçu has been calculated here.
Air line (approximately)
250 kilometers
135 nautical miles