The calculated distance (air line) between Pereiaslav and Velyka Dymerka is approximately 44 miles respectively 70 kilometers.
By car or train, the actual journey to Velyka Dymerka is certainly longer, as only the direct route (as the crow flies) between Pereiaslav and Velyka Dymerka has been calculated here.
Air line (approximately)
70 kilometers
38 nautical miles