The calculated distance (air line) between Makiivka and Sievierodonetsk is approximately 67 miles respectively 108 kilometers.
By car or train, the actual journey to Sievierodonetsk is certainly longer, as only the direct route (as the crow flies) between Makiivka and Sievierodonetsk has been calculated here.
Air line (approximately)
108 kilometers
58 nautical miles