The calculated distance (air line) between Santiago de Querétaro and Ojo de Agua is approximately 109 miles respectively 176 kilometers.
By car or train, the actual journey to Ojo de Agua is certainly longer, as only the direct route (as the crow flies) between Santiago de Querétaro and Ojo de Agua has been calculated here.
Air line (approximately)
176 kilometers
95 nautical miles