The calculated distance (air line) between Fīrozpur Jhirka and Gorakhpur is approximately 138 miles respectively 222 kilometers.
By car or train, the actual journey to Gorakhpur is certainly longer, as only the direct route (as the crow flies) between Fīrozpur Jhirka and Gorakhpur has been calculated here.
Air line (approximately)
222 kilometers
120 nautical miles