The calculated distance (air line) between Shizuoka and Yotsukaidō is approximately 111 miles respectively 178 kilometers.
By car or train, the actual journey to Yotsukaidō is certainly longer, as only the direct route (as the crow flies) between Shizuoka and Yotsukaidō has been calculated here.
Air line (approximately)
178 kilometers
96 nautical miles