The calculated distance (air line) between Pereiaslav and Bila Tserkva is approximately 62 miles respectively 99 kilometers.
By car or train, the actual journey to Bila Tserkva is certainly longer, as only the direct route (as the crow flies) between Pereiaslav and Bila Tserkva has been calculated here.
Air line (approximately)
99 kilometers
53 nautical miles