The calculated distance (air line) between Oyo and Ijebu-Igbo is approximately 61 miles respectively 98 kilometers.
By car or train, the actual journey to Ijebu-Igbo is certainly longer, as only the direct route (as the crow flies) between Oyo and Ijebu-Igbo has been calculated here.
Air line (approximately)
98 kilometers
53 nautical miles