Хэнтайская угольная мельница Khmelnytskyi Oblast - Wikipedia Khmelnytskyi Oblast has a total area of 20,600 km 2 (7,953.70 sq mi) (3.4% of the total area of Ukraine) and is located between 48°27' and 50°37' north latitude and between 26°09' and 27°56' east longitude.