If would like to make approximate budget of your trip to Russia you may consider the level of prices in Moscow below. If you go to any other russian city or small town be sure it will be cheaper;)

Caffe/Restaurants: 

Parameters	Russian roubles	USD
Sandwich	350	~6$
Pancakes	400	6$
Salad	480	8$
Soup	400	6$
Main Dish	800	13$
Dessert	450	7$
Wine	350r/glass	~6$
Beer	200r/0.5 l	~3$

       Accomodation: 

Parameters	Russian roubles	USD
Airbnb	from  2500r/night	from 40$
Hotels	from 1000r/night for double room	from 16$
Hostels	from 400r/night	from  6$/night

Transport: 

Parameters	Russian roubles	USD
Gasoline	46 r/l	0.73$
Car rent	from 2.500r/day	from 40$
Roads	majority are free
Metro (Subway) /Bus/Tram	from 36 rub/trip	rom 0.57$
Taxi	from 250	from 4$

Entertainment:

Parameters	Russian roubles	USD
Cinema	from 300r	from 5$
Museums	from 200r	from 3$
Concerts	from 1000r	from 16$
Bike rent	from 150r/day citybike	from 2$

  Food Store:

Parameters	Russian roubles	USD	Parameters	Russian roubles	USD
Bread	30-70	0.5-1$	Eggs	80r/10 pcs	1.3$/ 10 pcs
Rice	80 r/kg	1.2$	Milk	70 r/l	1.1$
Potato	40 r/kg	0.63	Butter	120	~2$
Pasta	60 r/kg	~1$	Yogurt	70	1.1$
Pelmeni (traditional food with fish or meat (kind of ravioli) – easy to boil) –	300	4.7$	Chocolate	80	1.3$
Cucumber	90 r/kg	1.5$	Banana	70	1.1$
Tomato	From 100r/kg	1.6$	Oranges	150	2.4$
Fish	from 200	3.2$	Apples	90	1.5$
Chicken	140 r/kg	2.2$	Wine	800	13$
Beef:	450r/kg	7.2$	Beer	80	1.3$