The calculated distance (air line) between Pietermaritzburg and Butha-Buthe is approximately 142 miles respectively 229 kilometers.
By car or train, the actual journey to Butha-Buthe is certainly longer, as only the direct route (as the crow flies) between Pietermaritzburg and Butha-Buthe has been calculated here.
Air line (approximately)
229 kilometers
123 nautical miles