The calculated distance (air line) between Tqvarch'eli and Ts’khinvali is approximately 124 miles respectively 200 kilometers.
By car or train, the actual journey to Ts’khinvali is certainly longer, as only the direct route (as the crow flies) between Tqvarch'eli and Ts’khinvali has been calculated here.
Air line (approximately)
200 kilometers
108 nautical miles