Cost of living in Turkey and at ODTÜ depends on your lifestyle and shopping preferences like in many other destinations. Below table shows the approximate prices of some basic items and services as of April 2019.

  TRY
Stationary-Books
Course books for one level at English Preparatory Program 80
Black and white photocopy of 100 pages 15-20
Notebook 10-20
Supermarket
Bread (200 gr) 1
Feta Cheese (1 kg) 15-25
Still water (1,5 L) 2
Milk (1 L) 3-4
White Sugar (1 kg) 5
A package of spaghetti (0,5 kg) 2-4
A whole chicken (1 kg) 10-15
A dozen of eggs 10
Veal (1 kg) 45-60
Olive Oil (1 L) 25-40
Coke (250 ml) 2
Apple (1 kg) 5
Cafes-Restaurants
A cup of coffee 5-10
Burger menu in a fast-food restaurant 20
A meal at an inexpensive restaurant 20-25
Lunch at university cafeteria (fix menu) 2,25
Turkish bagel at faculty canteens 1,5
A cup of tea at faculty canteens 0,85
Sandwich at faculty canteens 5
Lunch at faculty canteens 7-10
Accommodation
In-campus dormitories 175-1868 
House rent in university neighborhood for 3 students 1400-1600
Double-room in ODTÜ Guesthouse  (one night) 165
Transportation
Bus/Subway Ticket for students 1,75
Dolmuş (Minibus) 3
Taxi (5 km) 20
Autostop on ODTÜ campus and Shuttles Free
Ankara-İstanbul Bus Ticket (one-way) 75
Ankara-İstanbul High-Speed Train Ticket  80
Ankara-Antalya Flight Ticket (min.) 150-200
Leisure
Movie ticket for students 15-20
Theatre ticket for students (state theatre) 9
Concert of a local music band 30
Concert of a popular music band 50-100
A football match ticket in Ankara 20
Other
Fuel oil (1 L) 7
Mobile phone bill - monthly 25-100
Health Insurance (by state-annually) 980
Health Insurance (private-annually) 300-1000

Current USD/TRY rates: https://m.tr.investing.com/currencies/usd-try