The calculated distance (air line) between Thamaga and Metsemotlhaba is approximately 18 miles respectively 30 kilometers.
By car or train, the actual journey to Metsemotlhaba is certainly longer, as only the direct route (as the crow flies) between Thamaga and Metsemotlhaba has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles