The calculated distance (air line) between Ghāziābād and Karol Bāgh is approximately 15 miles respectively 24 kilometers.
By car or train, the actual journey to Karol Bāgh is certainly longer, as only the direct route (as the crow flies) between Ghāziābād and Karol Bāgh has been calculated here.
Air line (approximately)
24 kilometers
13 nautical miles