The calculated distance (air line) between Novosibirsk and Prokop’yevsk is approximately 171 miles respectively 275 kilometers.
By car or train, the actual journey to Prokop’yevsk is certainly longer, as only the direct route (as the crow flies) between Novosibirsk and Prokop’yevsk has been calculated here.
Air line (approximately)
275 kilometers
148 nautical miles