The calculated distance (air line) between Kherson and Novovorontsovka is approximately 86 miles respectively 138 kilometers.
By car or train, the actual journey to Novovorontsovka is certainly longer, as only the direct route (as the crow flies) between Kherson and Novovorontsovka has been calculated here.
Air line (approximately)
138 kilometers
75 nautical miles