The calculated distance (air line) between Gardez and Pul-e Khumrī is approximately 165 miles respectively 265 kilometers.
By car or train, the actual journey to Pul-e Khumrī is certainly longer, as only the direct route (as the crow flies) between Gardez and Pul-e Khumrī has been calculated here.
Air line (approximately)
265 kilometers
143 nautical miles