The calculated distance (air line) between Néa Kallikráteia and Tríkala is approximately 86 miles respectively 139 kilometers.
By car or train, the actual journey to Tríkala is certainly longer, as only the direct route (as the crow flies) between Néa Kallikráteia and Tríkala has been calculated here.
Air line (approximately)
139 kilometers
75 nautical miles