The currency in circulation in Russia is the ruble. Lubu is freely convertible with the US dollar and euro, and the exchange rate is a floating exchange rate, which is determined by the Russian central bank every day. You can change dollars or euros into rubles in local banks and exchange kiosks in Russia (обменвалют), while other currencies are relatively rare.
Exchange rate: 1 RMB = 10.5486 Russian ruble (20 15 1 month).