Russia's Trans-Siberian Railway is approximately 9,289 kilometres long.
The main route runs from Moscow to Vladivostok, crossing European Russia, Siberia, and the Russian Far East. It passes through eight time zones and connects the capital with Russia's Pacific coast. The commonly quoted distance is 9,289 kilometres, although exact figures can vary slightly according to route and measurement conventions.
Construction began in 1891 and the main line was substantially completed in 1916. Engineers faced enormous distances, severe winters, rivers, mountains, and difficult logistics. The railway helped strengthen Russia's economic and political connections across Siberia and encouraged settlement and trade.
The Trans-Siberian is not one single train journey with no branches. The wider rail system includes routes toward China, Mongolia, and North Korea. The Trans-Manchurian and Trans-Mongolian services are related international routes, but the Moscow–Vladivostok line is the standard meaning of the Trans-Siberian Railway.