The calculated distance (air line) between Chervonohryhorivka and Mariupol is approximately 145 miles respectively 234 kilometers.
By car or train, the actual journey to Mariupol is certainly longer, as only the direct route (as the crow flies) between Chervonohryhorivka and Mariupol has been calculated here.
Air line (approximately)
234 kilometers
126 nautical miles