The calculated distance (air line) between Vyatskiye Polyany and Izhevsk is approximately 92 miles respectively 148 kilometers.
By car or train, the actual journey to Izhevsk is certainly longer, as only the direct route (as the crow flies) between Vyatskiye Polyany and Izhevsk has been calculated here.
Air line (approximately)
148 kilometers
80 nautical miles