The calculated distance (air line) between Stuttgart and Kynšperk nad Ohří is approximately 177 miles respectively 284 kilometers.
By car or train, the actual journey to Kynšperk nad Ohří is certainly longer, as only the direct route (as the crow flies) between Stuttgart and Kynšperk nad Ohří has been calculated here.
Air line (approximately)
284 kilometers
153 nautical miles