The calculated distance (air line) between Khabarovsk Vtoroy and Vyazemskiy is approximately 65 miles respectively 104 kilometers.
By car or train, the actual journey to Vyazemskiy is certainly longer, as only the direct route (as the crow flies) between Khabarovsk Vtoroy and Vyazemskiy has been calculated here.
Air line (approximately)
104 kilometers
56 nautical miles