Belgium and Russia are about 2,250 to 2,260 kilometers apart in a straight line, depending on which Belgian city and Russian city you compare. The most common reference points (Brussels to Moscow) give a direct distance of roughly 2,250–2,260 km, or about 1,400–1,400+ miles. If you’re planning travel, note that road distances are longer due to routing, terrain, and borders; Brussels to Moscow driving routes are typically around 2,500–2,600 km and can take roughly 25–28 hours of continuous driving under normal conditions. The exact distance and travel time will vary based on your starting city in Belgium and your destination in Russia, as well as the chosen route and mode of transport. For precise numbers between specific cities (e.g., Brussels to Moscow, Antwerp to Saint Petersburg, etc.), I can look up the latest figures if you specify the exact cities you have in mind.