The calculated distance (air line) between Krugersdorp and Schweizer-Reneke is approximately 169 miles respectively 272 kilometers.
By car or train, the actual journey to Schweizer-Reneke is certainly longer, as only the direct route (as the crow flies) between Krugersdorp and Schweizer-Reneke has been calculated here.
Air line (approximately)
272 kilometers
147 nautical miles