The calculated distance (air line) between Kahna Nau and Guru Har Sahāi is approximately 46 miles respectively 73 kilometers.
By car or train, the actual journey to Guru Har Sahāi is certainly longer, as only the direct route (as the crow flies) between Kahna Nau and Guru Har Sahāi has been calculated here.
Air line (approximately)
73 kilometers
40 nautical miles