The calculated distance (air line) between Butha-Buthe and Phuthaditjhaba is approximately 38 miles respectively 62 kilometers.
By car or train, the actual journey to Phuthaditjhaba is certainly longer, as only the direct route (as the crow flies) between Butha-Buthe and Phuthaditjhaba has been calculated here.
Air line (approximately)
62 kilometers
33 nautical miles