The calculated distance (air line) between Mantsonyane and Butha-Buthe is approximately 53 miles respectively 85 kilometers.
By car or train, the actual journey to Butha-Buthe is certainly longer, as only the direct route (as the crow flies) between Mantsonyane and Butha-Buthe has been calculated here.
Air line (approximately)
85 kilometers
46 nautical miles