To purchase USDT for rubles, use USDT exchangers
USDT/USDT Calculator Tether to Tether
Price of 1 Tether today (2 August)
₮ 1.00001
0.018%
USDT 
BTC
USD
RUB
EUR
GBP
ETH
LTC
BCH
BNB
BUSD
SOL