The calculated distance (air line) between Santa Gertrudes and Ribeirão Preto is approximately 90 miles respectively 145 kilometers.
By car or train, the actual journey to Ribeirão Preto is certainly longer, as only the direct route (as the crow flies) between Santa Gertrudes and Ribeirão Preto has been calculated here.
Air line (approximately)
145 kilometers
78 nautical miles