Uzbekistan is located in central Asia bordering the Aral Sea, between Kazakhstan and Turkmenistan. Comparatively, it is slightly larger than the state of California, with a total area of 447,400 sq km (172,742 sq mi). Uzbekistan shares boundaries with Kazakhstan on the N , Kyrgyzstan and Tajikistan on the E , Afghanistan on the S , and Turkmenistan on the SW . Uzbekistan's boundary length totals 6,221 km (3,866 mi). Its capital city, Tashkent, is located in the eastern part of the country.