The calculated distance (air line) between Campinas and Santo Antônio de Posse is approximately 23 miles respectively 36 kilometers.
By car or train, the actual journey to Santo Antônio de Posse is certainly longer, as only the direct route (as the crow flies) between Campinas and Santo Antônio de Posse has been calculated here.
Air line (approximately)
36 kilometers
20 nautical miles