The calculated distance (air line) between Riolândia and Ribeirão Preto is approximately 147 miles respectively 236 kilometers.
By car or train, the actual journey to Ribeirão Preto is certainly longer, as only the direct route (as the crow flies) between Riolândia and Ribeirão Preto has been calculated here.
Air line (approximately)
236 kilometers
127 nautical miles