The calculated distance (air line) between Guarulhos and Barra do Piraí is approximately 185 miles respectively 298 kilometers.
By car or train, the actual journey to Barra do Piraí is certainly longer, as only the direct route (as the crow flies) between Guarulhos and Barra do Piraí has been calculated here.
Air line (approximately)
298 kilometers
161 nautical miles