The calculated distance (air line) between Tsurugi-asahimachi and Yokohama is approximately 183 miles respectively 294 kilometers.
By car or train, the actual journey to Yokohama is certainly longer, as only the direct route (as the crow flies) between Tsurugi-asahimachi and Yokohama has been calculated here.
Air line (approximately)
294 kilometers
159 nautical miles