The calculated distance (air line) between Chlumec nad Cidlinou and Jihlava is approximately 53 miles respectively 85 kilometers.
By car or train, the actual journey to Jihlava is certainly longer, as only the direct route (as the crow flies) between Chlumec nad Cidlinou and Jihlava has been calculated here.
Air line (approximately)
85 kilometers
46 nautical miles