The calculated distance (air line) between Hefei and Mengcheng Chengguanzhen is approximately 105 miles respectively 170 kilometers.
By car or train, the actual journey to Mengcheng Chengguanzhen is certainly longer, as only the direct route (as the crow flies) between Hefei and Mengcheng Chengguanzhen has been calculated here.
Air line (approximately)
170 kilometers
92 nautical miles