The calculated distance (air line) between Shuanglongchang and Chongqing is approximately 80 miles respectively 129 kilometers.
By car or train, the actual journey to Chongqing is certainly longer, as only the direct route (as the crow flies) between Shuanglongchang and Chongqing has been calculated here.
Air line (approximately)
129 kilometers
70 nautical miles