The calculated distance (air line) between Semibratovo and Nizhniy Novgorod is approximately 182 miles respectively 293 kilometers.
By car or train, the actual journey to Nizhniy Novgorod is certainly longer, as only the direct route (as the crow flies) between Semibratovo and Nizhniy Novgorod has been calculated here.
Air line (approximately)
293 kilometers
158 nautical miles