The calculated distance (air line) between Guaíra and Ribeirão Preto is approximately 68 miles respectively 109 kilometers.
By car or train, the actual journey to Ribeirão Preto is certainly longer, as only the direct route (as the crow flies) between Guaíra and Ribeirão Preto has been calculated here.
Air line (approximately)
109 kilometers
59 nautical miles