The calculated distance (air line) between Karol Bāgh and Farrukhnagar is approximately 26 miles respectively 42 kilometers.
By car or train, the actual journey to Farrukhnagar is certainly longer, as only the direct route (as the crow flies) between Karol Bāgh and Farrukhnagar has been calculated here.
Air line (approximately)
42 kilometers
23 nautical miles