The calculated distance (air line) between Swindon and Royal Wootton Bassett is approximately 5 miles respectively 9 kilometers.
By car or train, the actual journey to Royal Wootton Bassett is certainly longer, as only the direct route (as the crow flies) between Swindon and Royal Wootton Bassett has been calculated here.
Air line (approximately)
9 kilometers
5 nautical miles