The calculated distance (air line) between Chervonohryhorivka and Donetsk is approximately 154 miles respectively 248 kilometers.
By car or train, the actual journey to Donetsk is certainly longer, as only the direct route (as the crow flies) between Chervonohryhorivka and Donetsk has been calculated here.
Air line (approximately)
248 kilometers
134 nautical miles