The calculated distance (air line) between Ibiúna and Ribeirão Preto is approximately 175 miles respectively 282 kilometers.
By car or train, the actual journey to Ribeirão Preto is certainly longer, as only the direct route (as the crow flies) between Ibiúna and Ribeirão Preto has been calculated here.
Air line (approximately)
282 kilometers
152 nautical miles