The calculated distance (air line) between Mangaratiba and Nova Iguaçu is approximately 40 miles respectively 64 kilometers.
By car or train, the actual journey to Nova Iguaçu is certainly longer, as only the direct route (as the crow flies) between Mangaratiba and Nova Iguaçu has been calculated here.
Air line (approximately)
64 kilometers
35 nautical miles