The calculated distance (air line) between Tikrīt and Al-Hamdaniya is approximately 116 miles respectively 186 kilometers.
By car or train, the actual journey to Al-Hamdaniya is certainly longer, as only the direct route (as the crow flies) between Tikrīt and Al-Hamdaniya has been calculated here.
Air line (approximately)
186 kilometers
100 nautical miles