The calculated distance (air line) between Tanushimarumachi-toyoki and Shingū is approximately 29 miles respectively 47 kilometers.
By car or train, the actual journey to Shingū is certainly longer, as only the direct route (as the crow flies) between Tanushimarumachi-toyoki and Shingū has been calculated here.
Air line (approximately)
47 kilometers
25 nautical miles