The calculated distance (air line) between Połczyn-Zdrój and Gdańsk is approximately 111 miles respectively 179 kilometers.
By car or train, the actual journey to Gdańsk is certainly longer, as only the direct route (as the crow flies) between Połczyn-Zdrój and Gdańsk has been calculated here.
Air line (approximately)
179 kilometers
97 nautical miles