The calculated distance (air line) between Ayaş and Kızılcahamam is approximately 35 miles respectively 57 kilometers.
By car or train, the actual journey to Kızılcahamam is certainly longer, as only the direct route (as the crow flies) between Ayaş and Kızılcahamam has been calculated here.
Air line (approximately)
57 kilometers
31 nautical miles