The calculated distance (air line) between Ivanovo and Gavrilov-Yam is approximately 47 miles respectively 76 kilometers.
By car or train, the actual journey to Gavrilov-Yam is certainly longer, as only the direct route (as the crow flies) between Ivanovo and Gavrilov-Yam has been calculated here.
Air line (approximately)
76 kilometers
41 nautical miles