Country size comparison
compared to
Russia is about 2,966 times bigger than Brunei.
Brunei is approximately 5,765 sq km, while Russia is approximately 17,098,242 sq km, making Russia 296,487% larger than Brunei. Meanwhile, the population of Brunei is ~478,054 people (141.5 million more people live in Russia).
Compare further: Russia vs. Brunei