The calculated distance (air line) between Altinópolis and Ribeirão Preto is approximately 30 miles respectively 48 kilometers.
By car or train, the actual journey to Ribeirão Preto is certainly longer, as only the direct route (as the crow flies) between Altinópolis and Ribeirão Preto has been calculated here.
Air line (approximately)
48 kilometers
26 nautical miles