The calculated distance (air line) between Thaba Nchu and Bloemfontein is approximately 38 miles respectively 61 kilometers.
By car or train, the actual journey to Bloemfontein is certainly longer, as only the direct route (as the crow flies) between Thaba Nchu and Bloemfontein has been calculated here.
Air line (approximately)
61 kilometers
33 nautical miles