The calculated distance (air line) between Qacha’s Nek and Mohale's Hoek is approximately 73 miles respectively 117 kilometers.
By car or train, the actual journey to Mohale's Hoek is certainly longer, as only the direct route (as the crow flies) between Qacha’s Nek and Mohale's Hoek has been calculated here.
Air line (approximately)
117 kilometers
63 nautical miles